Update PostgreSQL client installation in backup workflow

.github/workflows/neon-backup.yml

@@ -2,10 +2,8 @@ name: Daily Neon Database Backup
 
 on:
   schedule:
-    # Elke nacht om 02:00 UTC = 04:00 Nederlandse zomertijd / 03:00 wintertijd
     - cron: "0 2 * * *"
 
-  # Hiermee kun je handmatig testen via GitHub
   workflow_dispatch:
 
 jobs:
@@ -13,10 +11,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Install PostgreSQL client
+      - name: Install PostgreSQL 17 client
         run: |
           sudo apt-get update
-          sudo apt-get install -y postgresql-client
+          sudo apt-get install -y curl ca-certificates gnupg
+          curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo gpg --dearmor -o /usr/share/keyrings/postgresql.gpg
+          echo "deb [signed-by=/usr/share/keyrings/postgresql.gpg] http://apt.postgresql.org/pub/repos/apt noble-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list
+          sudo apt-get update
+          sudo apt-get install -y postgresql-client-17
+          pg_dump --version
 
       - name: Create backup
         env:
@@ -24,7 +27,7 @@ jobs:
         run: |
           mkdir -p backups
           DATE=$(date +"%Y-%m-%d_%H-%M-%S")
-          pg_dump "$DATABASE_URL" \
+          /usr/lib/postgresql/17/bin/pg_dump "$DATABASE_URL" \
             --format=custom \
             --no-owner \
             --no-privileges \