[Bug][Tools] Add datasource url for mysql profile in tools application.yaml (#10399)

(cherry picked from commit 42d4aba3)

dolphinscheduler-tools/src/main/resources/application.yaml

@@ -43,6 +43,7 @@ spring:
       on-profile: mysql
   datasource:
     driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://127.0.0.1:3306/dolphinscheduler?useUnicode=true&characterEncoding=UTF-8
 
 ---
 spring: