Address PR feedback: Remove H2 dependency and update README

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

doma-spring-boot-samples/doma-spring-boot-sample-docker-compose/README.md

@@ -48,18 +48,13 @@ services:
   postgres:
     image: 'postgres:latest'
     environment:
-      - 'POSTGRES_DB=${POSTGRES_DB}'
-      - 'POSTGRES_PASSWORD=${POSTGRES_PASSWORD}'
-      - 'POSTGRES_USER=${POSTGRES_USER}'
+      - 'POSTGRES_DB=mydatabase'
+      - 'POSTGRES_PASSWORD=secret'
+      - 'POSTGRES_USER=myuser'
     ports:
       - '5432'
 ```
 
-Before running the application, you should set the following environment variables:
-- `POSTGRES_DB`: The name of the PostgreSQL database (e.g., "domadb")
-- `POSTGRES_USER`: The PostgreSQL username (e.g., "doma")
-- `POSTGRES_PASSWORD`: The PostgreSQL password
-
 Spring Boot automatically configures the application to connect to this database.
 
 ## Notes

doma-spring-boot-samples/doma-spring-boot-sample-docker-compose/pom.xml

@@ -48,11 +48,7 @@
             <artifactId>postgresql</artifactId>
             <scope>runtime</scope>
         </dependency>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <scope>test</scope>
-        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>