chore(dev): use postgresql 18 (#16850)

.devcontainer/compose.yml

@@ -28,7 +28,7 @@ services:
 
   db:
     restart: unless-stopped
-    image: postgres:15-alpine
+    image: postgres:18-alpine
     networks:
       - internal_network
     environment:

.github/ISSUE_TEMPLATE/01_bug-report.yml

@@ -76,7 +76,7 @@ body:
           * Installation Method or Hosting Service: docker compose, k8s/docker, systemd, "Misskey install shell script", development environment
           * Misskey: 2025.x.x
           * Node: 20.x.x
-          * PostgreSQL: 15.x.x
+          * PostgreSQL: 18.x.x
           * Redis: 7.x.x
           * OS and Architecture: Ubuntu 24.04.2 LTS aarch64
       value: |

.github/workflows/test-backend.yml

@@ -38,7 +38,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:15
+        image: postgres:18
         ports:
           - 54312:5432
         env:
@@ -117,7 +117,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:15
+        image: postgres:18
         ports:
           - 54312:5432
         env:
@@ -165,7 +165,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:15
+        image: postgres:18
         ports:
           - 54312:5432
         env:

.github/workflows/test-frontend.yml

@@ -64,7 +64,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:15
+        image: postgres:18
         ports:
           - 54312:5432
         env:

chart/templates/Deployment.yml

@@ -27,7 +27,7 @@ spec:
           ports:
             - containerPort: 3000
         - name: postgres
-          image: postgres:15-alpine
+          image: postgres:18-alpine
           env:
             - name: POSTGRES_USER
               value: "example-misskey-user"

compose.local-db.yml

@@ -15,7 +15,7 @@ services:
 
   db:
     restart: always
-    image: postgres:15-alpine
+    image: postgres:18-alpine
     ports:
       - "5432:5432"
     env_file:

compose_example.yml

@@ -37,7 +37,7 @@ services:
 
   db:
     restart: always
-    image: postgres:15-alpine
+    image: postgres:18-alpine
     networks:
       - internal_network
     env_file:

packages/backend/test-federation/compose.tpl.yml

@@ -95,7 +95,7 @@ services:
       retries: 20
 
   db:
-    image: postgres:15-alpine
+    image: postgres:18-alpine
     env_file:
       - ./.config/docker.env
     volumes:

packages/backend/test/compose.yml

@@ -5,7 +5,7 @@ services:
       - "127.0.0.1:56312:6379"
 
   dbtest:
-    image: postgres:15
+    image: postgres:18
     ports:
       - "127.0.0.1:54312:5432"
     environment: