Update actions/github-script action to v8

.github/actions/loadtest/action.yml

@@ -209,7 +209,7 @@ runs:
     - name: Post PR comment
       if: inputs.post-comment == 'true' && inputs.pr-number != ''
       continue-on-error: true
-      uses: actions/github-script@v7
+      uses: actions/github-script@v8
       with:
         github-token: ${{ inputs.github-token }}
         script: |

.github/workflows/loadtest.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Add reaction to comment
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.reactions.createForIssueComment({
@@ -31,7 +31,7 @@ jobs:
 
       - name: Get PR details
         id: pr
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const pr = await github.rest.pulls.get({
@@ -89,7 +89,7 @@ jobs:
 
       - name: Add success reaction
         if: steps.loadtest.outputs.status == 'pass'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.reactions.createForIssueComment({
@@ -101,7 +101,7 @@ jobs:
 
       - name: Add failure reaction
         if: steps.loadtest.outputs.status == 'fail'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.reactions.createForIssueComment({