fix: correct semantic versioning in CI pipeline

- Fix version tag selection to prefer releases over pre-releases
- Releases (v1.0.0) now take precedence over RCs (v1.0.0-rc.X)
- Ensures proper semantic versioning hierarchy in CI/CD pipeline

Author: Raffael Herrmann

.github/workflows/docker-build.yml

@@ -25,7 +25,18 @@ jobs:
       id: get-tag
       run: |
         git fetch --tags
-        LATEST_TAG=$(git tag | grep '^v[0-9]\+\.[0-9]\+\.[0-9]\+\(-rc\.[0-9]\+\)\?$' | sort -V | tail -1)
+        
+        # First try to find the latest release (non-RC) version
+        RELEASE_TAG=$(git tag | grep '^v[0-9]\+\.[0-9]\+\.[0-9]\+$' | sort -V | tail -1)
+        
+        if [ -n "$RELEASE_TAG" ]; then
+          # Use the latest release if it exists
+          LATEST_TAG="$RELEASE_TAG"
+        else
+          # Fall back to the latest RC version
+          LATEST_TAG=$(git tag | grep '^v[0-9]\+\.[0-9]\+\.[0-9]\+-rc\.[0-9]\+$' | sort -V | tail -1)
+        fi
+        
         if [ -z "$LATEST_TAG" ]; then
           echo "No version tags found"
           exit 1