update golangci-lint rules (#461)

.golangci.yaml

@@ -17,12 +17,14 @@ linters:
     - bodyclose
     - errcheck
     - gofmt
-    - revive
+    - gofumpt
+    - goimports
     - gosec
     - gosimple
     - govet
     - ineffassign
     - misspell
+    - revive
     - staticcheck
     - typecheck
     - unused
@@ -44,3 +46,5 @@ output:
 linters-settings:
   golint:
     min-confidence: 0.8
+
+fix: true

executor_test.go

@@ -64,5 +64,4 @@ func Test_ExecutorPanicHandling(t *testing.T) {
 
 	state := <-panicHandled
 	assert.Equal(t, state, true)
-
 }

gocron_test.go

@@ -157,7 +157,6 @@ func Test_callJobFuncWithParams(t *testing.T) {
 			if err != nil && !tt.err {
 				t.Fatalf("unexpected panic: %s", err.Error())
 			}
-
 		})
 	}
 }

scheduler_test.go

@@ -966,7 +966,7 @@ func TestScheduler_Stop(t *testing.T) {
 		t.Parallel()
 		s := NewScheduler(time.UTC)
 		job, _ := s.Every(3).Second().Do(func() {
-			//noop
+			// noop
 		})
 		s.StartAsync()
 		time.Sleep(time.Second) // enough time for job to run
@@ -2546,5 +2546,4 @@ func TestScheduler_ChainOrder(t *testing.T) {
 	for i, j := range s.jobs {
 		assert.Equal(t, fmt.Sprint(funcs[i]), fmt.Sprint(j.function))
 	}
-
 }