ci: Fix latest tag detection to exclude dev tags

.github/workflows/check_pypi_version.yml

@@ -55,13 +55,23 @@ jobs:
       - name: Get latest tag
         id: latest_tag
         run: |
+          set -x # Enable debugging output
           # Fetch all tags from remote just in case
           git fetch --tags origin main
-          # Get the latest tag that looks like vX.Y.Z (no 'dev')
-          latest_tag=$(git tag --list 'v[0-9]*.[0-9]*.[0-9]*' --sort=-v:refname | head -n 1)
+          # Get the latest tag that strictly matches vX.Y.Z (no suffixes like .dev)
+          # List all tags, sort by version descending, filter for exact pattern, take the first one
+          latest_tag=$(git tag --sort=-v:refname | grep -P '^v\d+\.\d+\.\d+$' | head -n 1)
+
+          if [ -z "$latest_tag" ]; then
+            echo "Error: Could not find any tags matching the pattern '^v\d+\.\d+\.\d+$'"
+            exit 1
+          fi
+
           echo "Latest non-dev tag: $latest_tag"
           # Remove 'v' prefix for comparison
-          echo "tag=${latest_tag#v}" >> $GITHUB_OUTPUT
+          tag_num=${latest_tag#v}
+          echo "Extracted tag number: $tag_num"
+          echo "tag=$tag_num" >> $GITHUB_OUTPUT
 
       - name: Compare versions
         run: |