build(user-service): replace Spring Boot JPA with Hibernate and PostgreSQL

second-part/hw-02/user-service/pom.xml

@@ -4,13 +4,6 @@
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-    <groupId>org.springframework.boot</groupId>
-    <artifactId>spring-boot-starter-parent</artifactId>
-    <version>4.1.1</version>
-    <relativePath />
-  </parent>
-
   <groupId>com.example</groupId>
   <artifactId>user-service</artifactId>
   <version>1.0-SNAPSHOT</version>
@@ -46,15 +39,25 @@
 
     <!-- Optionally: parameterized tests support -->
 
+    <!-- JUnit -->
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-params</artifactId>
       <scope>test</scope>
     </dependency>
 
+    <!-- Hibernate ORM -->
     <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-data-jpa</artifactId>
+      <groupId>org.hibernate.orm</groupId>
+      <artifactId>hibernate-core</artifactId>
+      <version>7.4.10.Final</version>
+    </dependency>
+
+    <!-- PostgreSQL JDBC Driver -->
+    <dependency>
+      <groupId>org.postgresql</groupId>
+      <artifactId>postgresql</artifactId>
+      <version>42.7.8</version>
     </dependency>
 
   </dependencies>