Bump maven-surefire-plugin.version from 3.0.0-M7 to 3.3.1

Bumps `maven-surefire-plugin.version` from 3.0.0-M7 to 3.3.1.

Updates `org.apache.maven.plugins:maven-surefire-plugin` from 3.0.0-M7 to 3.3.1
- [Release notes](https://github.com/apache/maven-surefire/releases)
- [Commits](apache/maven-surefire@surefire-3.0.0-M7...surefire-3.3.1)

Updates `org.apache.maven.plugins:maven-surefire-report-plugin` from 3.0.0-M7 to 3.3.1
- [Release notes](https://github.com/apache/maven-surefire/releases)
- [Commits](apache/maven-surefire@surefire-3.0.0-M7...surefire-3.3.1)

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

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

pom.xml

@@ -19,7 +19,7 @@
         <maven-resources-plugin.version>3.1.0</maven-resources-plugin.version><!-- for Github CI -->
         <cobertura-maven-plugin.version>2.7</cobertura-maven-plugin.version>
         <maven-site-plugin.version>3.12.1</maven-site-plugin.version>
-        <maven-surefire-plugin.version>3.0.0-M7</maven-surefire-plugin.version>
+        <maven-surefire-plugin.version>3.3.1</maven-surefire-plugin.version>
         <jdk9-illegal-access-level>deny</jdk9-illegal-access-level>
     </properties>
     <name>SnakeYAML</name>