feat: add json logger output (#1026)

* feat: add json logger output

This will allow to format log output as json.
This is helpful in cases where act is not executed on a 'local' machine.

* refactor: use runner config

Using the runner config to configure logging is cleaner.

Co-authored-by: Casey Lee <cplee@nektos.com>

pkg/runner/command_test.go

@@ -157,9 +157,14 @@ func TestAddmaskUsemask(t *testing.T) {
 
 	a := assert.New(t)
 
+	config := &Config{
+		Secrets:         map[string]string{},
+		InsecureSecrets: false,
+	}
+
 	re := captureOutput(t, func() {
 		ctx := context.Background()
-		ctx = WithJobLogger(ctx, "testjob", map[string]string{}, false, &rc.Masks)
+		ctx = WithJobLogger(ctx, "testjob", config, &rc.Masks)
 
 		handler := rc.commandHandler(ctx)
 		handler("::add-mask::secret\n")