chore(deps): bump org.apache.james:apache-mime4j-dom (#5909)

Bumps org.apache.james:apache-mime4j-dom from 0.8.11 to 0.8.12.

---
updated-dependencies:
- dependency-name: org.apache.james:apache-mime4j-dom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

utils/tests/pom.xml

@@ -21,7 +21,7 @@
       <dependency>
         <groupId>org.apache.james</groupId>
         <artifactId>apache-mime4j-dom</artifactId>
-        <version>0.8.11</version>
+        <version>0.8.12</version>
       </dependency>
       <dependency>
         <groupId>org.apache.james</groupId>