Update push.yml for versions 16, 18 & 19

I still expect them to be red, but enable them anyway.

Author: kvakil

.github/workflows/push.yml

@@ -19,12 +19,12 @@ jobs:
           - version: 10.x
           - version: 12.x
           - version: 14.x
-          # - version: 16.x
-          # - version: 18.x
-          # - version: 19.x
-          #   mirror: https://nodejs.org/download/nightly
-          # - version: 19.x
-          #   mirror: https://nodejs.org/download/v8-canary
+          - version: 16.x
+          - version: 18.x
+          - version: 19.x
+            mirror: https://nodejs.org/download/nightly
+          - version: 19.x
+            mirror: https://nodejs.org/download/v8-canary
         # os: [ubuntu-latest, macos-latest]
         # Temporarily disable MacOS until
         # https://github.com/nodejs/node/issues/32981 is fixed