[pgadmin-org/pgadmin4] 4b477a: Update release notes

[Aditya Toshniwal]

  Branch: refs/heads/master
  Home:   https://github.com/pgadmin-org/pgadmin4
  Commit: 4b477aed5d6129858ae0bb5910f0e8ab33557477
      
https://github.com/pgadmin-org/pgadmin4/commit/4b477aed5d6129858ae0bb5910f0e8ab33557477
  Author: Aditya Toshniwal <aditya.toshniwa...@gmail.com>
  Date:   2023-06-22 (Thu, 22 Jun 2023)

  Changed paths:
    M docs/en_US/release_notes_7_4.rst

  Log Message:
  -----------
  Update release notes