fix(tests): use ubuntu-20.04 for tests

.github/workflows/automerge.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   automerge:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: automerge
         if: github.event.context == 'Mergeable'

.github/workflows/go-maintenance.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   go-mod-upgrades:
     name: Upgrade all Go modules
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/go-version.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   version-sync:
     name: Synchronise go-version
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/lock.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   lock:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Lock closed issues and PRs
         uses: dessant/lock-threads@v2

.github/workflows/node-version.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   version-sync:
     name: Synchronise node-version
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/openapi.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   code-sync:
     name: Regenerate OpenAPI client code
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/scan.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   codeql:
     name: CodeQL
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -28,7 +28,7 @@ jobs:
 
   anchore:
     name: Anchore Container Scan
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout the code
         uses: actions/checkout@v2

.github/workflows/stale.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   stale:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/stale@v3.0.18
         with:

.github/workflows/test.yml

@@ -14,7 +14,7 @@ on:
 jobs:
   test-go:
     name: Test Go code
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -57,7 +57,7 @@ jobs:
 
   lint-go:
     name: Lint Go code
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -91,7 +91,7 @@ jobs:
 
   test-js:
     name: Test JS code
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         env:
@@ -134,7 +134,7 @@ jobs:
 
   lint-js:
     name: Lint JS code
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -165,7 +165,7 @@ jobs:
 
   format-go:
     name: Check Go code formatting
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -183,7 +183,7 @@ jobs:
 
   format-js:
     name: Check JS code formatting
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -217,7 +217,7 @@ jobs:
 
   go-mod-tidy:
     name: Verify go.sum
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -244,7 +244,7 @@ jobs:
 
   deps-js:
     name: Check JS dependencies
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -275,7 +275,7 @@ jobs:
 
   lint-versions:
     name: Lint Versions
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -285,7 +285,7 @@ jobs:
 
   typescript:
     name: Check for non-typescript components
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -295,7 +295,7 @@ jobs:
 
   git-commit:
     name: Lint git commit
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -309,7 +309,7 @@ jobs:
 
   docs:
     name: Lint documentation
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -335,7 +335,7 @@ jobs:
       - typescript
       - git-commit
       - docs
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: All linters passed
         run: "true"
@@ -344,7 +344,7 @@ jobs:
     name: Benchmark Go code compare
     if: github.event_name == 'pull_request'
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -396,7 +396,7 @@ jobs:
     name: Webpack bundle size compare
     if: github.event_name == 'pull_request'
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -441,7 +441,7 @@ jobs:
     name: Percy UI snapshots
     if: github.event_name != 'release'
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -487,7 +487,7 @@ jobs:
   cross-compile:
     name: Cross compile binaries
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -548,7 +548,7 @@ jobs:
   docker:
     name: Build docker image
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -624,7 +624,7 @@ jobs:
   demo-deploy:
     name: Deploy demo app to Heroku
     needs: stage-test-and-lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Check out code
         uses: actions/checkout@v2
@@ -681,7 +681,7 @@ jobs:
       - cross-compile
       - docker
       - demo-deploy
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - name: "Update status"
         uses: Sibz/github-status-action@v1.1.4