Run tests on Node.js v21 (#15516)

.github/workflows/dev-test.yml

@@ -39,8 +39,8 @@ jobs:
             CHECK_TEST_PARSERS: true
           # Versions not tested on linux, normally only even versions
           # If latest version is an odd number, it can be listed bellow too
-          # - os: "ubuntu-latest"
-          #   node: "20"
+          - os: "ubuntu-latest"
+            node: "21"
     env:
       ENABLE_CODE_COVERAGE: ${{ matrix.ENABLE_CODE_COVERAGE }}
       FULL_TEST: ${{ matrix.FULL_TEST }}

.github/workflows/prod-test.yml

@@ -68,6 +68,8 @@ jobs:
           # If latest version is an odd number, it can be listed bellow too
           - os: "ubuntu-latest"
             node: "16"
+          - os: "ubuntu-latest"
+            node: "21"
     env:
       FULL_TEST: ${{ matrix.FULL_TEST }}
     name: Node.js ${{ matrix.node }} on ${{ matrix.os }}${{ matrix.FULL_TEST && ' (Full Test)' || '' }}