Fixes the following CVEs:
CVE-2020-25694
CVE-2020-25695
CVE-2020-25696
Full release notes at:
https://www.postgresql.org/docs/12/release-12-5.html
Signed-off-by: Robert Joslyn <robert.joslyn@redrectangle.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>