ci/cd(lint): bump to v2

.github/workflows/release.yml

@@ -32,7 +32,9 @@ jobs:
           cache: true
 
       - name: Run Linter
-        run: go run github.com/golangci/golangci-lint/cmd/golangci-lint@latest run ./...
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: v2.1.6
 
       - name: Run Tests
         run: go test -v ./...

.golangci.yml

@@ -1,4 +1,4 @@
-
+version: 2
 
 run:
     timeout: 5m

tests/root/update_test.go

@@ -37,12 +37,14 @@ func TestUpdateState(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer os.RemoveAll(tmpDir)
+	defer func() { _ = os.RemoveAll(tmpDir) }()
 
 	// Override home dir for testing
 	homeBackup := os.Getenv("HOME")
-	os.Setenv("HOME", tmpDir)
-	defer os.Setenv("HOME", homeBackup)
+	if err := os.Setenv("HOME", tmpDir); err != nil {
+		t.Fatal(err)
+	}
+	defer func() { _ = os.Setenv("HOME", homeBackup) }()
 
 	// Ensure .iris directory exists
 	_ = os.MkdirAll(filepath.Join(tmpDir, ".iris"), 0755)