Update datasource URL to use PostgreSQL

src/main/resources/application-bdc.properties

@@ -1,6 +1,6 @@
 spring.application.name=dictionary
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
 spring.datasource.driver-class-name=com.amazonaws.secretsmanager.sql.AWSSecretsManagerPostgreSQLDriver
-spring.datasource.url=jdbc-secretsmanager:mysql://${DATASOURCE_URL}/auth?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&autoReconnectForPools=true
+spring.datasource.url=jdbc-secretsmanager:postgres://${DATASOURCE_URL}/auth?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&autoReconnectForPools=true
 spring.datasource.username=${DATASOURCE_USERNAME}
 server.port=80