gnucash stable: Release GnuCash 5.3.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/0b3d3a5a (commit)
	from  https://github.com/Gnucash/gnucash/commit/5798d311 (commit)



commit 0b3d3a5a68cfa9588224f1b49a3cc6c8b6314510
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Jun 26 09:04:59 2023 -0700

    Release GnuCash 5.3.



Summary of changes:
 CMakeLists.txt |  2 +-
 NEWS           | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)