feat: add mySQL driver

Author: Alex4386

build.gradle

@@ -30,6 +30,7 @@ dependencies {
 
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     runtimeOnly 'com.h2database:h2'
+    runtimeOnly 'com.mysql:mysql-connector-j'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 
     // org.mapstruct