Add newer Emacs versions to CI and refactor release workflow (#10)

Author: ybiquitous

.github/workflows/release.yml

@@ -9,8 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: echo ::set-output name=tag::${GITHUB_REF/refs\/tags\//}
-        id: get_tag
-      - run: gh release create '${{ steps.get_tag.outputs.tag }}' --draft --notes 'See also the [CHANGELOG](https://github.com/${{ github.repository }}/blob/${{ steps.get_tag.outputs.tag }}/CHANGELOG.md).'
+      - run: |
+          echo "See also the [changelog](https://github.com/${GITHUB_REPOSITORY}/blob/${GITHUB_REF_NAME}/CHANGELOG.md) for details." >> notes.md
+
+          gh release create "${GITHUB_REF_NAME}" --notes-file=notes.md --draft
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -17,9 +17,11 @@ jobs:
           - 25.3
           - 26.3
           - 27.2
+          - 28.2
+          - 29.3
     steps:
       - uses: actions/checkout@v4
-      - uses: purcell/setup-emacs@master
+      - uses: purcell/setup-emacs@7a92187aa5b5a3b854cbdfa47499fbd3d1207163
         with:
           version: ${{ matrix.emacs-version }}
-      - uses: leotaku/elisp-check@master
+      - uses: leotaku/elisp-check@6a1fc6b11ae66dda13859f8b3474a36dfe3ef225