Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -147,7 +147,7 @@ jobs:
       #     zephir_parser-php-7.3-nts-ubuntu-gcc-x64.zip
       #     zephir_parser-php-7.3-nts-windows2019-vc15-x64.zip
       - name: Upload Zephir Parser
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: zephir_parser-php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.arch }}.zip
           path: |
@@ -179,7 +179,7 @@ jobs:
 
       - name: Upload Info for Debug on Fail
         if: failure()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           retention-days: 2
           name: debug-zephir_parser-php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.arch }}
@@ -250,7 +250,7 @@ jobs:
           pecl info zephir_parser-pecl.tgz
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: 'zephir_parser-pecl'
           path: zephir_parser-pecl.tgz