build(deps): bump actions/upload-artifact from 6 to 7 (#8482)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v6...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/s3-policy-tests.yml

@@ -70,7 +70,7 @@ jobs:
 
       - name: Upload test results on failure
         if: failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: policy-unit-test-results
           path: |
@@ -178,7 +178,7 @@ jobs:
 
       - name: Upload test logs on failure
         if: failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: s3-policy-variables-test-logs
           path: /tmp/weed_policy_test_server.log
@@ -299,7 +299,7 @@ jobs:
 
       - name: Upload test logs on failure
         if: failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: s3-policy-enforcement-logs-${{ matrix.test-case }}
           path: /tmp/weed_policy_enforcement_${{ matrix.test-case }}.log
@@ -386,7 +386,7 @@ jobs:
 
       - name: Upload test logs on failure
         if: failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: trusted-proxy-test-logs
           path: /tmp/weed_proxy_test.log