build(deps): bump flatten-maven-plugin from 1.2.1 to 1.2.2

Bumps [flatten-maven-plugin](https://github.com/mojohaus/flatten-maven-plugin) from 1.2.1 to 1.2.2.
- [Release notes](https://github.com/mojohaus/flatten-maven-plugin/releases)
- [Commits](mojohaus/flatten-maven-plugin@flatten-maven-plugin-1.2.1...flatten-maven-plugin-1.2.2)

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

pom.xml

@@ -239,7 +239,7 @@
 				<plugin>
 					<groupId>org.codehaus.mojo</groupId>
 					<artifactId>flatten-maven-plugin</artifactId>
-					<version>1.2.1</version>
+					<version>1.2.2</version>
 				</plugin>
 
 				<plugin>