Bump com.fasterxml.jackson:jackson-bom in /log4j-parent

Bumps [com.fasterxml.jackson:jackson-bom](https://github.com/FasterXML/jackson-bom) from 2.19.2 to 2.20.0.
- [Commits](FasterXML/jackson-bom@jackson-bom-2.19.2...jackson-bom-2.20.0)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson:jackson-bom
  dependency-version: 2.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

log4j-parent/pom.xml

@@ -88,7 +88,7 @@
     <hamcrest.version>3.0</hamcrest.version>
     <HdrHistogram.version>2.2.2</HdrHistogram.version>
     <hsqldb.version>2.7.4</hsqldb.version>
-    <jackson-bom.version>2.19.2</jackson-bom.version>
+    <jackson-bom.version>2.20.0</jackson-bom.version>
     <!-- Override the version in Jakarta EE 9 BOM: -->
     <jakarta-activation.version>2.1.3</jakarta-activation.version>
     <jakarta-mail.version>2.1.3</jakarta-mail.version>

pom.xml

@@ -345,7 +345,7 @@
     <site-conversant.version>1.2.21</site-conversant.version>
     <site-disruptor.version>4.0.0</site-disruptor.version>
     <site-flume.version>1.11.0</site-flume.version>
-    <site-jackson.version>2.19.2</site-jackson.version>
+    <site-jackson.version>2.20.0</site-jackson.version>
     <site-javax-mail.version>1.6.2</site-javax-mail.version>
     <site-jctools.version>4.0.5</site-jctools.version>
     <site-je.version>18.3.12</site-je.version>