[NAE-1881] Release 6.3.0-rc.9

- removed node 12 support

Author: renczesnetgrif

.github/workflows/pr-build.yml

@@ -8,7 +8,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                node-version: [ 12, 14, 16, 18 ]
+                node-version: [ 14, 16, 18 ]
         steps:
             -   uses: actions/checkout@v3
                 with: