chore: downgrading junit in aws-lambda-java-tests because technically it's a transitive dependency

Author: Davide Melfi

aws-lambda-java-tests/pom.xml

@@ -33,9 +33,13 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <junit.version>5.12.2</junit.version>
+        <!--
+            JUnit is a compile-scope transitive dependency for consumers of this module.
+            Upgrading it requires a version bump of aws-lambda-java-tests to avoid
+            breaking customers who don't pin their own JUnit version.
+        -->
+        <junit.version>5.9.2</junit.version>
         <jacoco.maven.plugin.version>0.8.7</jacoco.maven.plugin.version>
-        <maven-surefire-plugin.version>3.5.4</maven-surefire-plugin.version>
     </properties>
 
     <dependencies>
@@ -250,7 +254,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
+                <version>2.22.2</version>
                 <configuration>
                     <failIfNoTests>true</failIfNoTests>
                 </configuration>