Upgrade Heroku-20 and Heroku-22 to PostgreSQL 16 (#269)

updating to major postgres version 16
pg16 Release notes: https://www.postgresql.org/docs/release/16.0/

GUS-W-15288386.

heroku-20-build/installed-packages.txt

@@ -561,10 +561,10 @@ pinentry-curses
 pkg-config
 poppler-data
 poppler-utils
-postgresql-client-15
+postgresql-client-16
 postgresql-client-common
 postgresql-common
-postgresql-server-dev-15
+postgresql-server-dev-16
 procps
 python-is-python3
 python2

heroku-20-build/setup.sh

@@ -78,7 +78,7 @@ packages=(
   libzstd-dev
   mercurial
   patchelf
-  postgresql-server-dev-15
+  postgresql-server-dev-16
   python3-dev
   ruby-dev
   zlib1g-dev

heroku-20/installed-packages.txt

@@ -355,7 +355,7 @@ perl-modules-5.30
 pinentry-curses
 poppler-data
 poppler-utils
-postgresql-client-15
+postgresql-client-16
 postgresql-client-common
 procps
 python-is-python3

heroku-20/setup.sh

@@ -132,7 +132,7 @@ packages=(
   openssh-server
   patch
   poppler-utils
-  postgresql-client-15
+  postgresql-client-16
   python-is-python3
   python3
   rename

heroku-22-build/installed-packages.txt

@@ -560,7 +560,7 @@ pinentry-curses
 pkg-config
 poppler-data
 poppler-utils
-postgresql-client-15
+postgresql-client-16
 postgresql-client-common
 procps
 python-is-python3

heroku-22/installed-packages.txt

@@ -360,7 +360,7 @@ perl-modules-5.34
 pinentry-curses
 poppler-data
 poppler-utils
-postgresql-client-15
+postgresql-client-16
 postgresql-client-common
 procps
 python-is-python3

heroku-22/setup.sh

@@ -135,7 +135,7 @@ packages=(
   openssh-server
   patch
   poppler-utils
-  postgresql-client-15
+  postgresql-client-16
   python-is-python3
   python3
   rename