Bump actions/upload-artifact from 2 to 3

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v2...v3)

---
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>
(cherry picked from commit 4963e6f3fc)

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
           scons target=release generate_bindings=yes -j $(nproc)
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: godot-cpp-linux-glibc2.27-x86_64-release
           path: bin/libgodot-cpp.linux.release.64.a