build(deps): bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -57,7 +57,7 @@ jobs:
         working-directory: src/github.com/containerd/containerd
 
       - name: Save release notes
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: containerd-release-notes
           path: src/github.com/containerd/containerd/release-notes.md
@@ -127,7 +127,7 @@ jobs:
         env:
           PLATFORM: ${{ matrix.dockerfile-platform }}
       - name: Save Artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: release-tars-${{env.PLATFORM_CLEAN}}
           path: src/github.com/containerd/containerd/releases/*.tar.gz*