test: Could not find class [org.springframework.boot.mail.autoconfigure.MailSenderAutoConfiguration]

- some tests failing because of missing MailSenderAutoConfiguration
- adding spring-boot-starter-mail in test-scope

Author: Andreas Höhmann

spring-boot-admin-server-cloud/pom.xml

@@ -104,6 +104,11 @@
             <artifactId>spring-boot-starter-security</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-mail</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-json-org</artifactId>