bump(golangci-lint): update and migrate

golangci-lint migrate to make .golangci.yaml v2 compatible

.golangci.yml

@@ -1,18 +1,36 @@
-run:
-  timeout: 5m
-
+version: "2"
 linters:
-  disable-all: true
+  default: none
+  enable:
+    - gocyclo
+    - govet
+    - misspell
+    # - staticcheck // TODO: enable later once the code is properly updated
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
   enable:
     - gofmt
     - gofumpt
-    - gosimple
-    - gocyclo
-    - misspell
-    - govet
-
-linters-settings:
-  gofumpt:
-    extra-rules: true
-  goimports:
-    local-prefixes: sigs.k8s.io/descheduler
+    #- goimports // TODO: enable later once the code is properly updated
+  settings:
+    gofumpt:
+      extra-rules: true
+    goimports:
+      local-prefixes:
+        - sigs.k8s.io/descheduler
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

Makefile

@@ -26,7 +26,7 @@ ARCHS = amd64 arm arm64
 
 LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitbranch=${BRANCH} -X ${LDFLAG_LOCATION}.gitsha1=${SHA1}"
 
-GOLANGCI_VERSION := v1.64.8
+GOLANGCI_VERSION := v2.8.0
 HAS_GOLANGCI := $(shell ls _output/bin/golangci-lint 2> /dev/null)
 
 GOFUMPT_VERSION := v0.7.0
@@ -149,12 +149,14 @@ ifndef HAS_GOLANGCI
 	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b ./_output/bin ${GOLANGCI_VERSION}
 endif
 	./_output/bin/golangci-lint run -v
+	./_output/bin/golangci-lint fmt -v
 
 fmt:
 ifndef HAS_GOFUMPT
 	go install mvdan.cc/gofumpt@${GOFUMPT_VERSION}
 endif
 	gofumpt -w -extra .
+	goimports -w pkg metrics test
 
 # helm