fix: Update PostgreSQL and Redis images, and upgrade GitHub Actions to latest versions

Author: SecCodeSmith

.github/workflows/pr.yml

@@ -20,7 +20,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:15
+        image: postgres:17-alpine
         env:
           POSTGRES_PASSWORD: postgres
           POSTGRES_USER: postgres
@@ -34,7 +34,7 @@ jobs:
           - 5432:5432
 
       redis:
-        image: redis:7
+        image: redis:8-alpine
         options: >-
           --health-cmd "redis-cli ping"
           --health-interval 10s
@@ -45,15 +45,15 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
     - name: Cache pip dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}