feat: upgrade golangci-lint to v2

Use the latest version of `golangci-lint` and fix the CI workflow.

Author: radar07

.github/workflows/lint.yaml

@@ -17,14 +17,14 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
 
       - name: Verify dependencies
         run: |
           go mod verify
           go mod download
 
-          LINT_VERSION=1.64.8
+          LINT_VERSION=2.1.6
           curl -fsSL https://github.com/golangci/golangci-lint/releases/download/v${LINT_VERSION}/golangci-lint-${LINT_VERSION}-linux-amd64.tar.gz | \
             tar xz --strip-components 1 --wildcards \*/golangci-lint
           mkdir -p bin && mv golangci-lint bin/
@@ -45,6 +45,6 @@ jobs:
           assert-nothing-changed go fmt ./...
           assert-nothing-changed go mod tidy
 
-          bin/golangci-lint run --out-format=colored-line-number --timeout=3m || STATUS=$?
+          bin/golangci-lint run --timeout=3m || STATUS=$?
 
           exit $STATUS

.golangci.yml

@@ -1,28 +1,35 @@
+# https://golangci-lint.run/usage/configuration
+version: "2"
+
 run:
   timeout: 5m
   tests: true
   concurrency: 4
 
 linters:
   enable:
-    - govet
+    - bodyclose
     - errcheck
-    - staticcheck
-    - gofmt
-    - goimports
-    - revive
+    - gocritic
+    - gosec
+    - govet
     - ineffassign
-    - typecheck
-    - unused
-    - gosimple
+    - makezero
     - misspell
     - nakedret
-    - bodyclose
-    - gocritic
-    - makezero
-    - gosec
+    - revive
+    - staticcheck
+    - unused
+
+formatters:
+  enable:
+    - gci
+    - gofmt
+    - goimports
+    - golines
 
 output:
-  formats: colored-line-number
-  print-issued-lines: true
-  print-linter-name: true
+  formats:
+    text:
+      print-linter-name: true
+      print-issued-lines: true