fix: use head.ref for post dependabot checkout (#224)

Author: lukekarrys

.github/workflows/post-dependabot.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          ref: ${{ github.ref_name }}
+          ref: ${{ github.event.pull_request.head.ref }}
       - name: Setup Git User
         run: |
           git config --global user.email "npm-cli+bot@github.com"

lib/content/post-dependabot.yml

@@ -11,7 +11,7 @@ jobs:
     {{> job
       jobName="template-oss"
       jobIf="github.actor == 'dependabot[bot]'"
-      jobCheckout=(obj ref="${{ github.ref_name }}")
+      jobCheckout=(obj ref="${{ github.event.pull_request.head.ref }}")
     }}
       - name: Fetch Dependabot Metadata
         id: metadata

tap-snapshots/test/apply/source-snapshots.js.test.cjs

@@ -584,7 +584,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          ref: \${{ github.ref_name }}
+          ref: \${{ github.event.pull_request.head.ref }}
       - name: Setup Git User
         run: |
           git config --global user.email "npm-cli+bot@github.com"
@@ -2066,7 +2066,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          ref: \${{ github.ref_name }}
+          ref: \${{ github.event.pull_request.head.ref }}
       - name: Setup Git User
         run: |
           git config --global user.email "npm-cli+bot@github.com"
@@ -3343,7 +3343,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          ref: \${{ github.ref_name }}
+          ref: \${{ github.event.pull_request.head.ref }}
       - name: Setup Git User
         run: |
           git config --global user.email "npm-cli+bot@github.com"