[pgadmin-org/pgadmin4] f399b3: Update release notes.

[Khushboo Vashi]

  Branch: refs/heads/master
  Home:   https://github.com/pgadmin-org/pgadmin4
  Commit: f399b30605d00781defc3cf9437bae3067dbd887
      
https://github.com/pgadmin-org/pgadmin4/commit/f399b30605d00781defc3cf9437bae3067dbd887
  Author: Khushboo Vashi <khushboo.va...@enterprisedb.com>
  Date:   2023-08-07 (Mon, 07 Aug 2023)

  Changed paths:
    M docs/en_US/release_notes_7_6.rst

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