[pgadmin-org/pgadmin4] 0a3a90: Update version for release.

[Akshay Joshi]

  Branch: refs/heads/master
  Home:   https://github.com/pgadmin-org/pgadmin4
  Commit: 0a3a90b4005ca9b8b77407dba20b89bfca8810fd
      
https://github.com/pgadmin-org/pgadmin4/commit/0a3a90b4005ca9b8b77407dba20b89bfca8810fd
  Author: Akshay Joshi <akshay.jo...@enterprisedb.com>
  Date:   2022-10-17 (Mon, 17 Oct 2022)

  Changed paths:
    M docs/en_US/release_notes_6_15.rst
    M web/config.py

  Log Message:
  -----------
  Update version for release.