gcp credentials not required to deploy (#10)

Author: peterbjohnson

.github/workflows/deploy.yml

@@ -49,7 +49,7 @@ on:
         required: false
       gcp_credentials:
         description: "The JSON key for deploying to GCP"
-        required: true
+        required: false
 
 jobs:
   setup:
@@ -189,4 +189,4 @@ jobs:
       region: europe-west2
     secrets:
       function-admin-api-key: ${{ secrets.function-admin-api-key }}
-      gcp_credentials: ${{ secrets.gcp_credentials }}
+      gcp_credentials: ${{ secrets.gcp_credentials }}