Define environment requirements for Moodle 5.1

Author: HuongNV13

.github/workflows/test.yml

@@ -62,7 +62,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:14
+        image: postgres:15
         env:
           POSTGRES_USER: 'postgres'
           POSTGRES_HOST_AUTH_METHOD: 'trust'

docs/CHANGELOG.md

@@ -9,6 +9,9 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 The format of this change log follows the advice given at [Keep a CHANGELOG](https://keepachangelog.com).
 
 ## [Unreleased]
+### Changed
+- Bump workflows to Postgres 15, which is a requirement for Moodle 5.1
+
 ## [4.5.8] - 2025-07-08
 ### Changed
 - Bump default Selenium version to 4.

gha.dist.yml

@@ -8,7 +8,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:14
+        image: postgres:15
         env:
           POSTGRES_USER: 'postgres'
           POSTGRES_HOST_AUTH_METHOD: 'trust'