chore(deps): update github artifact actions

Author: renovate[bot]

.github/actions/sync-files/action.yml

@@ -125,7 +125,7 @@ runs:
         fi
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       if: always()
       with:
         name: synced-${{ inputs.type }}

.github/workflows/e2e.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Upload Playwright report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: playwright-report
           path: playwright-report

.github/workflows/sync-docs-from-node.yml

@@ -188,7 +188,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download all sync artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         continue-on-error: true
         with:
           pattern: synced-*
@@ -225,7 +225,7 @@ jobs:
           echo "✅ Merged artifact created"
 
       - name: Upload merged synced files
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: synced-merged
           path: synced-merged/
@@ -255,7 +255,7 @@ jobs:
 
       - name: Download merged synced files
         if: needs.aggregate-results.result == 'success'
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         with:
           name: synced-merged
           path: temp-merged
@@ -285,7 +285,7 @@ jobs:
           fi
 
       - name: Upload final documentation
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: steps.generate.outputs.success == 'true'
         with:
           name: synced-final
@@ -320,7 +320,7 @@ jobs:
 
       - name: Download final documentation
         if: needs.generate-docs.result == 'success'
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         with:
           name: synced-final
           path: temp-final
@@ -451,7 +451,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download final artifact with sync reports
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         continue-on-error: true
         with:
           name: synced-final