chore: Update action.yml to make 'services' input optional

Author: strworkstation

action.yml

@@ -15,7 +15,7 @@ inputs:
     required: true
   services:
     description: 'Services to release, comma separate if multiple'
-    required: true
+    required: false
   timestamp:
     description: 'Timestamp of release, defaults to now'
     required: false
@@ -25,4 +25,4 @@ inputs:
 
 runs:
   using: node20
-  main: dist/index.js
+  main: dist/index.js