fix main workflow

Author: simonhaenisch

.github/main.workflow

@@ -5,11 +5,11 @@ workflow "Install & Test" {
 
 action "npm install" {
   uses = "actions/npm@59b64a598378f31e49cb76f27d6f3312b582f680"
-  runs = "install"
+  args = "install"
 }
 
 action "npm test" {
   uses = "actions/npm@59b64a598378f31e49cb76f27d6f3312b582f680"
-  runs = "test"
   needs = ["npm install"]
+  args = "test"
 }