fix: change order of stage resolution

Author: ceecko

index.js

@@ -12,11 +12,11 @@ class ServerlessStepFunctionsLocal {
 
     this.log = serverless.cli.log.bind(serverless.cli);
     this.config = (this.service.custom && this.service.custom.stepFunctionsLocal) || {};
-    
-    if (this.service.provider !== undefined && this.service.provider.stage !== undefined) {
-      this.stage = this.service.provider.stage;
-    } else if (this.service.stage !== undefined) {
+
+    if (this.service.stage !== undefined) {
       this.stage = this.service.stage;
+    } else if (this.service.provider !== undefined && this.service.provider.stage !== undefined) {
+      this.stage = this.service.provider.stage;
     } else {
       this.stage = 'dev';
     }