Bump maven-surefire-plugin from 3.0.0-M5 to 3.0.0-M6

Bumps [maven-surefire-plugin](https://github.com/apache/maven-surefire) from 3.0.0-M5 to 3.0.0-M6.
- [Release notes](https://github.com/apache/maven-surefire/releases)
- [Commits](apache/maven-surefire@surefire-3.0.0-M5...surefire-3.0.0-M6)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-surefire-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -114,7 +114,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.0.0-M5</version>
+                <version>3.0.0-M6</version>
             </plugin>
             <plugin>
                 <artifactId>maven-deploy-plugin</artifactId>

tests/test-junit4/pom.xml

@@ -45,12 +45,12 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.0.0-M5</version>
+                <version>3.0.0-M6</version>
                 <dependencies>
                     <dependency>
                         <groupId>org.apache.maven.surefire</groupId>
                         <artifactId>surefire-junit4</artifactId>
-                        <version>3.0.0-M5</version>
+                        <version>3.0.0-M6</version>
                     </dependency>
                 </dependencies>
             </plugin>