fix workflow for version bump

.github/workflows/version_bump.yaml

@@ -29,20 +29,20 @@ jobs:
           echo "Latest release tag of gohugoio/hugo is ${release_tag}"
           echo "hugo_latest_release_tag=${release_tag}" >> $GITHUB_ENV
 
-      - name: Identify latest release branch
+      - name: Identify latest release tag
         run: |
-          git fetch -a origin
-          latest_branch=$(git branch -r --sort=committerdate | grep -E "*/release/*" | tail -1 | awk -F'/' '{print $NF}')
-          echo "My latest release branch is ${latest_branch}"
-          echo "latest_branch=${latest_branch}" >> $GITHUB_ENV
+          releases=$(gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/floryn90/docker-hugo/releases?per_page=1&page=1)
+          my_release_tag=$(echo $releases | jq '.[0].tag_name' | sed 's/v//' | sed 's/"//g')
+          echo "My latest release tag is ${my_release_tag}"
+          echo "my_release_tag=${my_release_tag}" >> $GITHUB_ENV
 
       - name: Configure Git User's information
         run: |
           git config --global user.email '[email protected]'
           git config --global user.name 'Florin Lungu'
 
       - name: Create new release branch and run version bump
-        if: env.latest_branch != env.hugo_latest_release_tag 
+        if: env.my_release_tag != env.hugo_latest_release_tag 
         run: |
           git checkout -b release/${{ env.hugo_latest_release_tag }}
           version=${{env.hugo_latest_release_tag}} make bump
@@ -53,19 +53,19 @@ jobs:
 
       - name: Create new PR with latest release branch
         id: pr
-        if: env.latest_branch != env.hugo_latest_release_tag 
+        if: env.my_release_tag != env.hugo_latest_release_tag 
         run: |
           pr=$(gh api --method POST -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/floryn90/docker-hugo/pulls -f title="Hugo version bump to ${{env.hugo_latest_release_tag}}" -f body="Hugo version bump to ${{env.hugo_latest_release_tag}}" -f head="release/${{env.hugo_latest_release_tag}}" -f base='master')
           pr_number=$(echo $pr | jq '.number')
           echo "pr_number=${pr_number}" >> $GITHUB_OUTPUT
 
       - name: Merge the PR
-        if: env.latest_branch != env.hugo_latest_release_tag
+        if: env.my_release_tag != env.hugo_latest_release_tag
         run: |
           gh api --method PUT -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/floryn90/docker-hugo/pulls/${{ steps.pr.outputs.pr_number }}/merge -f commit_title="Merge PR ${{ steps.pr.outputs.pr_number }}" -f commit_message='Merge pull request to upgrade hugo version' 
       
       - name: Create new release tag
-        if: env.latest_branch != env.hugo_latest_release_tag 
+        if: env.my_release_tag != env.hugo_latest_release_tag 
         run: |
           gh api --method POST -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/floryn90/docker-hugo/releases -f tag_name="v${{ env.hugo_latest_release_tag }}" -f target_commitish='master' -f name="Hugo version v${{env.hugo_latest_release_tag}}" -f body="Hugo release version bump to ${{env.hugo_latest_release_tag}}" -F draft=false -F prerelease=false -F generate_release_notes=false