Update org.mongodb:bson to version 5.6.1 (#3961)

Author: asf-rm

log4j-mongodb/pom.xml

@@ -30,7 +30,7 @@
     <!-- OSGi and JPMS options -->
     <Fragment-Host>org.apache.logging.log4j.core</Fragment-Host>
     <!-- Dependency versions -->
-    <mongodb.version>5.5.1</mongodb.version>
+    <mongodb.version>5.6.1</mongodb.version>
     <slf4j2.version>2.0.17</slf4j2.version>
   </properties>
   <dependencyManagement>

src/changelog/.2.x.x/update_org_mongodb_bson.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<entry xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns="https://logging.apache.org/xml/ns"
+       xsi:schemaLocation="https://logging.apache.org/xml/ns https://logging.apache.org/xml/ns/log4j-changelog-0.xsd"
+       type="updated">
+  <issue id="3961" link="https://github.com/apache/logging-log4j2/pull/3961"/>
+  <description format="asciidoc">Update `org.mongodb:bson` to version `5.6.1`</description>
+</entry>