[12.0.x Root pom] Bump eu.maveniverse.maven.mimir:extension3

Bumps the dev-dependencies group with 1 update in the / directory: [eu.maveniverse.maven.mimir:extension3](https://github.com/maveniverse/mimir).


Updates `eu.maveniverse.maven.mimir:extension3` from 0.10.1 to 0.10.4
- [Release notes](https://github.com/maveniverse/mimir/releases)
- [Commits](maveniverse/mimir@release-0.10.1...release-0.10.4)

---
updated-dependencies:
- dependency-name: eu.maveniverse.maven.mimir:extension3
  dependency-version: 0.10.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

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

Author: dependabot[bot]

.mvn/extensions.xml

@@ -4,6 +4,6 @@
     <extension>
         <groupId>eu.maveniverse.maven.mimir</groupId>
         <artifactId>extension3</artifactId>
-        <version>0.10.1</version>
+        <version>0.10.4</version>
     </extension>
 </extensions>