chore(deps-dev): bump org.codehaus.mojo:flatten-maven-plugin (#1345)

Bumps the development-dependencies group with 1 update: [org.codehaus.mojo:flatten-maven-plugin](https://github.com/mojohaus/flatten-maven-plugin).


Updates `org.codehaus.mojo:flatten-maven-plugin` from 1.8.0 to 1.9.0
- [Release notes](https://github.com/mojohaus/flatten-maven-plugin/releases)
- [Commits](mojohaus/flatten-maven-plugin@1.8.0...1.9.0)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:flatten-maven-plugin
  dependency-version: 1.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: development-dependencies
...

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

Author: dependabot[bot]

pom.xml

@@ -560,7 +560,7 @@
                     <plugin>
                         <groupId>org.codehaus.mojo</groupId>
                         <artifactId>flatten-maven-plugin</artifactId>
-                        <version>1.8.0</version>
+                        <version>1.9.0</version>
                         <configuration>
                             <updatePomFile>true</updatePomFile>
                             <flattenMode>${flatten.mode}</flattenMode>
@@ -636,7 +636,7 @@
                     <plugin>
                         <groupId>org.codehaus.mojo</groupId>
                         <artifactId>flatten-maven-plugin</artifactId>
-                        <version>1.8.0</version>
+                        <version>1.9.0</version>
                         <configuration>
                             <updatePomFile>true</updatePomFile>
                             <flattenMode>${flatten.mode}</flattenMode>