Bump pluginTestingVersion from 3.0.2 to 3.0.3

Bumps `pluginTestingVersion` from 3.0.2 to 3.0.3.

Updates `io.takari.maven.plugins:takari-plugin-testing` from 3.0.2 to 3.0.3
- [Release notes](https://github.com/takari/takari-plugin-testing-project/releases)
- [Commits](takari/takari-plugin-testing-project@takari-plugin-testing-3.0.2...takari-plugin-testing-3.0.3)

Updates `io.takari.maven.plugins:takari-plugin-integration-testing` from 3.0.2 to 3.0.3
- [Release notes](https://github.com/takari/takari-plugin-testing-project/releases)
- [Commits](takari/takari-plugin-testing-project@takari-plugin-testing-3.0.2...takari-plugin-testing-3.0.3)

---
updated-dependencies:
- dependency-name: io.takari.maven.plugins:takari-plugin-testing
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: io.takari.maven.plugins:takari-plugin-integration-testing
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -31,7 +31,7 @@
     <mavenVersion>3.9.6</mavenVersion>
     <slf4jVersion>1.7.36</slf4jVersion>
     <logbackVersion>1.2.13</logbackVersion>
-    <pluginTestingVersion>3.0.2</pluginTestingVersion>
+    <pluginTestingVersion>3.0.3</pluginTestingVersion>
 
     <takari.javaSourceVersion>1.8</takari.javaSourceVersion>
     <takari.transitiveDependencyReference>ignore</takari.transitiveDependencyReference>