Bump flatten-maven-plugin from 1.2.7 to 1.3.0 (#15)

Bumps [flatten-maven-plugin](https://github.com/mojohaus/flatten-maven-plugin) from 1.2.7 to 1.3.0.
- [Release notes](https://github.com/mojohaus/flatten-maven-plugin/releases)
- [Commits](mojohaus/flatten-maven-plugin@flatten-maven-plugin-1.2.7...flatten-maven-plugin-1.3.0)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:flatten-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -79,7 +79,7 @@
     <!-- plugins -->
     <enforcer-plugin.version>3.1.0</enforcer-plugin.version>
     <clean-plugin.version>3.2.0</clean-plugin.version>
-    <flatten-plugin.version>1.2.7</flatten-plugin.version>
+    <flatten-plugin.version>1.3.0</flatten-plugin.version>
     <compiler-plugin.version>3.10.1</compiler-plugin.version>
     <surefire-plugin.version>2.22.2</surefire-plugin.version>
     <jar-plugin.version>3.2.2</jar-plugin.version>