Bump golangci-lint to v2.1.5 (#16545)

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

.github/workflows/ci.yml

@@ -206,7 +206,7 @@ jobs:
         with:
           args: --verbose
           # Make sure to sync this with Makefile.common and scripts/golangci-lint.yml.
-          version: v2.0.2
+          version: v2.1.5
   fuzzing:
     uses: ./.github/workflows/fuzzing.yml
     if: github.event_name == 'pull_request'

.golangci.yml

@@ -10,10 +10,6 @@ formatters:
         - prefix(github.com/prometheus/prometheus)
     gofumpt:
       extra-rules: true
-  exclusions:
-    paths:
-      # Skip autogenerated files.
-      - ^.*\.(pb|y)\.go$
 
 issues:
   max-issues-per-linter: 0
@@ -72,9 +68,7 @@ linters:
       - linters:
           - godot
         source: "^// ==="
-      - linters:
-          - perfsprint
-        text: "fmt.Sprintf can be replaced with string concatenation"
+    warn-unused: true
   settings:
     depguard:
       rules:
@@ -168,8 +162,6 @@ linters:
       disable:
         - float-compare
         - go-require
-        - len # FIXME
-        - useless-assert # FIXME: wait for golangci-lint > v2.0.2
       enable-all: true
 
 output:

Makefile.common

@@ -61,7 +61,7 @@ PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_
 SKIP_GOLANGCI_LINT :=
 GOLANGCI_LINT :=
 GOLANGCI_LINT_OPTS ?=
-GOLANGCI_LINT_VERSION ?= v2.0.2
+GOLANGCI_LINT_VERSION ?= v2.1.5
 # golangci-lint only supports linux, darwin and windows platforms on i386/amd64/arm64.
 # windows isn't included here because of the path separator being different.
 ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin))

scripts/golangci-lint.yml

@@ -36,4 +36,4 @@ jobs:
         uses: golangci/golangci-lint-action@1481404843c368bc19ca9406f87d6e0fc97bdcfd # v7.0.0
         with:
           args: --verbose
-          version: v2.0.2
+          version: v2.1.5