chore(ci): update script to generate Artifacthub annotations

.gitea/workflows/release.yaml

@@ -15,15 +15,16 @@ jobs:
         run: |
           apk update
           apk add git npm yq
+
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Add Artifacthub.io annotations
         run: |
-          NEW_TAG="$(git describe --abbrev=0)"
-          OLD_TAG="$(git describe --abbrev=0 --tags "$(git rev-list --tags --skip=1 --max-count=1)")"
-          .gitea/scripts/add-annotations.sh "${NEW_TAG}" "${OLD_TAG}"
+          NEW_TAG="$(git tag --sort=-version:refname | head -n 1)"
+          OLD_TAG="$(git tag --sort=-version:refname | head -n 2 | tail -n 1)"
+          .gitea/scripts/add-annotations.sh "${OLD_TAG}" "${NEW_TAG}"
 
       - name: Package chart
         env: