Bump actions/upload-artifact from 3 to 4 (#92)

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

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

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

.github/workflows/gh-pages.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Add results to step summary
         run:  cat docs/_includes/implementations.json >> $GITHUB_STEP_SUMMARY
       - name: Upload Implementations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: implementations
           path: docs/_includes/*
@@ -64,7 +64,7 @@ jobs:
           echo "# Specific Draft & Implementation results" >>  $GITHUB_STEP_SUMMARY
           cat docs/_includes/per-draft.md >> $GITHUB_STEP_SUMMARY
       - name: Upload Implementations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: functional
           path: docs/_includes/*
@@ -93,7 +93,7 @@ jobs:
           echo "# Json Validator Benchmark Results" >> $GITHUB_STEP_SUMMARY
           cat docs/_includes/JsonValidateBenchmark.md >> $GITHUB_STEP_SUMMARY
       - name: Upload Implementations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: validateBenchmark
           path: docs/_includes/*
@@ -122,7 +122,7 @@ jobs:
           echo "# Json Serde Benchmark Results" >> $GITHUB_STEP_SUMMARY
           cat docs/_includes/JsonSerdeBenchmark.md >> $GITHUB_STEP_SUMMARY
       - name: Upload Implementations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: serdeBenchmark
           path: docs/_includes/*