ci: bump publish workflow actions to Node 24 releases

checkout v4.1.7 -> v7.0.0, setup-python v5.2.0 -> v6.3.0,
action-gh-release v3.0.0 -> v3.0.1 (all Node 24, clearing the Node 20
deprecation warning). gh-action-pypi-publish is already latest (v1.14.0,
Docker-based). Refs stay pinned to commit SHAs.

Claude-Session: https://claude.ai/code/session_01Kx5DgKbhK1N8autqXH8SmS

.github/workflows/publish.yml

@@ -31,9 +31,9 @@ jobs:
       id-token: write   # OIDC trusted publishing to PyPI
       contents: write   # create the GitHub Release
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
 
-      - uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3  # v5.2.0
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1  # v6.3.0
         with:
           python-version: "3.12"
 
@@ -55,7 +55,7 @@ jobs:
         uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # release/v1.14.0
 
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@b4309332981a82ec1c5618f44dd2e27cc8bfbfda  # v3.0.0
+        uses: softprops/action-gh-release@718ea10b132b3b2eba29c1007bb80653f286566b  # v3.0.1
         with:
           tag_name: ${{ github.ref_name }}
           name: ${{ github.ref_name }}