Bump actions/upload-artifact from 3 to 4

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]>

.github/workflows/generate-baselines.yml

@@ -109,7 +109,7 @@ jobs:
           #   results_path: path to the benchmark results
 
       - name: Upload Results as Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: baselines
           path: |

.github/workflows/regressions.yml

@@ -185,7 +185,7 @@ jobs:
           #   filename: name of the results file
 
       - name: Upload ${{matrix.task_type}} results as artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ steps.benchmark.outputs.filename }}
           path: |
@@ -307,7 +307,7 @@ jobs:
           #   compared_means: path to the results of regression test vs baseline
 
       - name: Upload all results together as an artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ github.repository_owner }}_${{ steps.extract.outputs.branch }}_${{ github.sha }}
           path: |