ci(deps): bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...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>

Author: dependabot[bot]

.github/workflows/claude-live-test.yml

@@ -237,7 +237,7 @@ jobs:
 
     - name: Upload test report and screenshots
       if: always()
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: claude-test-report-pr-${{ github.event.pull_request.number }}
         path: |
@@ -249,7 +249,7 @@ jobs:
 
     - name: Upload Playwright traces (includes video)
       if: always()
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: playwright-traces-pr-${{ github.event.pull_request.number }}
         path: /tmp/test_output/traces

.github/workflows/e2e.yml

@@ -214,7 +214,7 @@ jobs:
 
     - name: Upload test results
       if: failure()
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: cypress-screenshots-pr-${{ github.event.pull_request.number }}
         path: e2e/cypress/screenshots
@@ -223,7 +223,7 @@ jobs:
 
     - name: Upload test videos
       if: failure()
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: cypress-videos-pr-${{ github.event.pull_request.number }}
         path: e2e/cypress/videos

.github/workflows/feedback-loop.yml

@@ -74,7 +74,7 @@ jobs:
 
       - name: Upload session configs
         if: steps.query.outputs.session_count != '0'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: session-configs
           path: /tmp/feedback-loop/sessions.json

.github/workflows/unit-tests.yml

@@ -133,7 +133,7 @@ jobs:
 
       - name: Upload HTML Report
         id: upload
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: (!cancelled())
         with:
           name: ${{ steps.name_gen.outputs.REPORT_NAME }}
@@ -273,7 +273,7 @@ jobs:
           go test -v -race -coverprofile=coverage.out ./...
 
       - name: Upload coverage
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: cli-coverage-${{ github.run_id }}