Заменил используемую СУБД Postgres на MySQL

https://spring.io/guides/gs/accessing-data-mysql

compose.yml

@@ -1,10 +1,11 @@
 services:
-  postgres:
-    restart: on-failure
-    image: postgres:13
-    ports:
-      - "5454:5432"
+  mysql:
+    image: 'mysql:latest'
     environment:
-      POSTGRES_USER: user
-      POSTGRES_PASSWORD: 123456
-      POSTGRES_DB: sweater_db
+      - 'MYSQL_DATABASE=sweater_db'
+      - 'MYSQL_PASSWORD=123456'
+      - 'MYSQL_ROOT_PASSWORD=verysecret'
+      - 'MYSQL_USER=user'
+    ports:
+      - '3306'
+