[pgadmin-org/pgadmin4] 014ae2: Update README and release note

[Akshay Joshi]

  Branch: refs/heads/master
  Home:   https://github.com/pgadmin-org/pgadmin4
  Commit: 014ae2ea3fdf24691a9cf782c0aab171d051f319
      
https://github.com/pgadmin-org/pgadmin4/commit/014ae2ea3fdf24691a9cf782c0aab171d051f319
  Author: Akshay Joshi <akshay.jo...@enterprisedb.com>
  Date:   2023-01-04 (Wed, 04 Jan 2023)

  Changed paths:
    M docs/en_US/release_notes_6_19.rst
    M pkg/redhat/README.md

  Log Message:
  -----------
  Update README and release note