build(deps): 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/server-tests.yml

@@ -142,7 +142,7 @@ jobs:
         run: cat ~/frappe-bench/bench_start.log || true
 
       - name: Upload coverage data
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage-${{ matrix.db }}-${{ matrix.container }}
           path: /home/runner/frappe-bench/sites/coverage.xml

.github/workflows/ui-tests.yml

@@ -152,13 +152,13 @@ jobs:
           ( tail -f /home/runner/frappe-bench/sites/coverage.xml & ) | grep -q "\/coverage"
 
       - name: Upload JS coverage data
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage-js-${{ matrix.container }}
           path: /home/runner/frappe-bench/apps/frappe/.cypress-coverage/clover.xml
 
       - name: Upload python coverage data
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage-py-${{ matrix.container }}
           path: /home/runner/frappe-bench/sites/coverage.xml