[MM-57743] Enable errcheck linter (#26723)

server/config/file_test.go

@@ -37,7 +37,8 @@ func setupConfigFile(t *testing.T, cfg *model.Config) (string, func()) {
 		cfgData, err := marshalConfig(cfg)
 		require.NoError(t, err)
 
-		os.WriteFile(f.Name(), cfgData, 0644)
+		err = os.WriteFile(f.Name(), cfgData, 0644)
+		require.NoError(t, err)
 
 		name = f.Name()
 	}
@@ -94,7 +95,8 @@ func assertFileNotEqualsConfig(t *testing.T, expectedCfg *model.Config, path str
 }
 
 func TestFileStoreNew(t *testing.T) {
-	utils.TranslationsPreInit()
+	err := utils.TranslationsPreInit()
+	require.NoError(t, err)
 
 	t.Run("absolute path, initialization required", func(t *testing.T) {
 		path, tearDown := setupConfigFile(t, testConfig)
@@ -221,7 +223,8 @@ func TestFileStoreNew(t *testing.T) {
 		cfgData, err := marshalConfig(testConfig)
 		require.NoError(t, err)
 
-		os.WriteFile(path, cfgData, 0644)
+		err = os.WriteFile(path, cfgData, 0644)
+		require.NoError(t, err)
 
 		fs, err := NewFileStore(path, false)
 		require.NoError(t, err)
@@ -811,7 +814,8 @@ func TestFileStoreLoad(t *testing.T) {
 		cfgData, err := marshalConfig(invalidConfig)
 		require.NoError(t, err)
 
-		os.WriteFile(path, cfgData, 0644)
+		err = os.WriteFile(path, cfgData, 0644)
+		require.NoError(t, err)
 
 		err = fs.Load()
 		if assert.Error(t, err) {