[JAVA-18185] Moved spring-boot-modules to jdk9-and-above profile (#13678)

Co-authored-by: Dhawal Kapil <dhawalkapil@gmail.com>

spring-boot-modules/spring-boot-testing/pom.xml

@@ -131,6 +131,14 @@
                         </goals>
                     </execution>
                 </executions>
+                <configuration>
+                    <targetBytecode>17</targetBytecode>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
             </plugin>
         </plugins>
     </build>
@@ -139,8 +147,9 @@
         <!-- The main class to start by executing java -jar -->
         <start-class>com.baeldung.boot.Application</start-class>
         <git-commit-id-plugin.version>2.2.4</git-commit-id-plugin.version>
-        <spock.version>1.2-groovy-2.4</spock.version>
-        <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>
+        <spock.version>2.4-M1-groovy-4.0</spock.version>
+        <gmavenplus-plugin.version>2.0.0</gmavenplus-plugin.version>
+        <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
         <redis.version>0.7.2</redis.version>
         <spring-boot.version>2.5.0</spring-boot.version>
         <log4j2.version>2.17.1</log4j2.version>