chore(deps): bump actions/upload-artifact from 6 to 7

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>

.github/workflows/_base-server-tests.yml

@@ -141,7 +141,7 @@ jobs:
           FRAPPE_SENTRY_DSN: ${{ secrets.SENTRY_DSN || '' }}
 
       - name: Upload coverage data
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: inputs.enable-coverage
         with:
           name: coverage-${{ matrix.db }}-${{ matrix.index }}

.github/workflows/_base-ui-tests.yml

@@ -124,7 +124,7 @@ jobs:
           ( tail -f ${GITHUB_WORKSPACE}/sites/*-coverage*.xml & ) | grep -q "\/coverage"
 
       - name: Upload JS coverage data
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: inputs.enable-coverage
         with:
           name: coverage-js-${{ matrix.index }}
@@ -137,7 +137,7 @@ jobs:
             fi
       - name: Upload Cypress Videos
         if: always() && steps.ui-tests.outcome == 'failure'
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: Cypress CI Video Recordings
           path: ./cypress_recordings.zip
@@ -145,7 +145,7 @@ jobs:
         
 
       - name: Upload coverage data
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: inputs.enable-coverage
         with:
           name: coverage-py-${{ matrix.index }}