chore(deps): update github artifact actions to v4 (OpenAPITools#776)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -42,7 +42,7 @@ jobs:
           cd dist/apps/generator-cli
           yarn pack -f ../package.tgz
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: package.tgz
           path: dist/apps/package.tgz
@@ -65,7 +65,7 @@ jobs:
         with:
           node-version: ${{matrix.node-version }}
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: package.tgz