chore(deps): bump actions/upload-artifact from 5 to 6 (#7762)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/s3-iam-tests.yml

@@ -65,7 +65,7 @@ jobs:
 
       - name: Upload test results on failure
         if: failure()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: iam-unit-test-results
           path: |
@@ -162,7 +162,7 @@ jobs:
 
       - name: Upload test logs on failure
         if: failure()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: s3-iam-integration-logs-${{ matrix.test-type }}
           path: test/s3/iam/weed-*.log
@@ -222,7 +222,7 @@ jobs:
 
       - name: Upload distributed test logs
         if: always()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: s3-iam-distributed-logs
           path: test/s3/iam/weed-*.log
@@ -274,7 +274,7 @@ jobs:
 
       - name: Upload performance test results
         if: always()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: s3-iam-performance-results
           path: |