Run full test on Node.js 20 (#15565)

Run `FULL_TEST` on Node.js 20

.github/workflows/dev-test.yml

@@ -33,7 +33,7 @@ jobs:
         include:
           - os: "ubuntu-latest"
             # Pick a version that is fast (normally highest LTS version)
-            node: "18"
+            node: "20"
             ENABLE_CODE_COVERAGE: true
             FULL_TEST: true
             CHECK_TEST_PARSERS: true

.github/workflows/prod-test.yml

@@ -62,7 +62,7 @@ jobs:
         include:
           - os: "ubuntu-latest"
             # Pick a version that is fast (normally highest LTS version)
-            node: "18"
+            node: "20"
             FULL_TEST: true
           # Versions not tested on linux, normally only even versions
           # If latest version is an odd number, it can be listed bellow too