SAK-40004 - Update Maven Plugins (sakaiproject#5786)

* maven-compiler -> 3.7

* maven-enforcer-plugin -> 1.4.1

* groupId redundat, cause it is inheret from parent

* fixed warning

master/pom.xml

@@ -2178,7 +2178,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-enforcer-plugin</artifactId>
-        <version>1.4</version>
+        <version>1.4.1</version>
         <executions>
           <execution>
             <id>enforce-versions</id>
@@ -2223,7 +2223,7 @@
         <inherited>true</inherited>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.5.1</version>
+        <version>3.7.0</version>
         <configuration>
           <!-- <compilerArguments> <verbose /> </compilerArguments> -->
           <source>${sakai.jdk.version}</source>

rubrics/tool/pom.xml

@@ -11,7 +11,6 @@
     </parent>
 
     <name>Sakai Rubrics - Manager Tool</name>
-    <groupId>org.sakaiproject.rubrics</groupId>
     <artifactId>rubrics-service</artifactId>
     <packaging>war</packaging>
 
@@ -215,6 +214,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring.boot.version}</version>
             </plugin>
             <plugin>
                 <artifactId>maven-war-plugin</artifactId>