Bump jackson-bom from 2.11.3 to 2.12.0 (#128)

Bumps [jackson-bom](https://github.com/FasterXML/jackson-bom) from 2.11.3 to 2.12.0.
- [Release notes](https://github.com/FasterXML/jackson-bom/releases)
- [Commits](FasterXML/jackson-bom@jackson-bom-2.11.3...jackson-bom-2.12.0)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

pom.xml

@@ -76,7 +76,7 @@
         <xmlunit.version>2.8.1</xmlunit.version>
         <hibernate-validator.version>6.1.6.Final</hibernate-validator.version>
         <javax-el.version>2.2.6</javax-el.version>
-        <jackson2.version>2.11.3</jackson2.version>
+        <jackson2.version>2.12.0</jackson2.version>
 
         <!-- build -->
         <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>