Make a Github action workflow to enforce a semver PR label is present

.github/workflows/check_for_semver_pr_label.yml

@@ -0,0 +1,18 @@
+name: Check for semver PR label
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+
+jobs:
+  check_for_semver_pr_label:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check that a semver label is present on the PR
+        if: github.event_name == 'pull_request'
+        uses: docker://agilepathway/pull-request-label-checker:latest
+        with:
+          one_of: major,minor,patch,trivial
+          repo_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/main.yml

@@ -6,7 +6,6 @@ on:
 
   pull_request:
     branches: [main]
-    types: [opened, synchronize, reopened, labeled, unlabeled]
 
 jobs:
   build: