run build on main and don't error if I don't create a tag (#14)

.github/workflows/build.yml

@@ -2,6 +2,9 @@ name: build
 on:
   pull_request:
     types: [ synchronize, opened ]
+  push:
+    branches:
+      - main
 
 jobs:
   build:

.github/workflows/create-tag.yml

@@ -8,6 +8,7 @@ on:
 jobs:
   deployment:
     runs-on: ubuntu-latest
+    continue-on-error: true
     environment: release
     steps:
       - name: Checkout