Bump actions/upload-artifact from 2.3.1 to 3 (flutter#54)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2.3.1 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@82c141c...6673cd0)

---
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>

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

Author: dependabot[bot]

impeller/.github/workflows/scorecards-analysis.yml

@@ -40,7 +40,7 @@ jobs:
 
       # Upload the results as artifacts (optional).
       - name: "Upload artifact"
-        uses: actions/upload-artifact@82c141cc518b40d92cc801eee768e7aafc9c2fa2
+        uses: actions/upload-artifact@6673cd052c4cd6fcf4b4e6e60ea986c889389535
         with:
           name: SARIF file
           path: results.sarif