fix(ci): update actions/upload-artifact to v4 in comprehensive-testing.yml

Author: morningstarxcdcode

.github/workflows/comprehensive-testing.yml

@@ -61,7 +61,7 @@ jobs:
         name: go-coverage
 
     - name: Upload test results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: always()
       with:
         name: go-test-results-${{ matrix.go-version }}
@@ -401,7 +401,7 @@ jobs:
         safety check || true
 
     - name: Upload security scan results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: always()
       with:
         name: security-test-results
@@ -422,7 +422,7 @@ jobs:
 
     steps:
     - name: Download all test artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
 
     - name: Generate test summary
       run: |
@@ -455,7 +455,7 @@ jobs:
           });
 
     - name: Upload test summary
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: test-summary
         path: test-summary.md