Fix auto tag action to use actions/checkout@v4 #minor (#12)

.github/workflows/auto-tag-main.yml

@@ -5,16 +5,23 @@ on:
       - closed
     branches:
       - main
+
 jobs:
   build:
+    if: github.event.pull_request.merged == true
     runs-on: ubuntu-22.04
+    permissions:
+      contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
-          fetch-depth: "0"
+          ref: ${{ github.event.pull_request.merge_commit_sha }}
+          fetch-depth: '0'
+
       - name: Bump version and push tag
         uses: anothrNick/[email protected]
         env:
           DEFAULT_BUMP: patch
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          WITH_V: true
+          WITH_V: true
+          PRERELEASE: true