Bump eu.maveniverse.maven.mimir:testing from 0.9.3 to 0.9.4 (#11233)

Bumps [eu.maveniverse.maven.mimir:testing](https://github.com/maveniverse/mimir) from 0.9.3 to 0.9.4.
- [Release notes](https://github.com/maveniverse/mimir/releases)
- [Commits](maveniverse/mimir@release-0.9.3...release-0.9.4)

---
updated-dependencies:
- dependency-name: eu.maveniverse.maven.mimir:testing
  dependency-version: 0.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -687,7 +687,7 @@ under the License.
       <dependency>
         <groupId>eu.maveniverse.maven.mimir</groupId>
         <artifactId>testing</artifactId>
-        <version>0.9.3</version>
+        <version>0.9.4</version>
       </dependency>
     </dependencies>
     <!--bootstrap-start-comment-->