chore(deps): bump actions/upload-artifact from 4 to 7 (#146)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/conformance-nightly.yml

@@ -80,7 +80,7 @@ jobs:
           NODE
 
       - name: Upload mock report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: conformance-mock-report
           path: conformance-artifacts/mock-report.json
@@ -169,7 +169,7 @@ jobs:
 
       - name: Upload adapter report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: conformance-${{ matrix.id }}-report
           path: conformance-artifacts/${{ matrix.id }}-report.json