Use the operating system package for PostgreSQL

This should around the problem with compiling mod_pgsql with PostgreSQL 14

ubuntu/resources/config.sh

@@ -14,7 +14,7 @@ switch_tls=true                 # true or false
 
 # Database Settings
 database_password=random        # random or a custom value (safe characters A-Z, a-z, 0-9)
-database_repo=official          # PostgreSQL official, system, 2ndquadrant
+database_repo=system            # PostgreSQL official, system, 2ndquadrant
 database_version=13             # requires repo official
 database_host=127.0.0.1         # hostname or IP address
 database_port=5432              # port number