Bump com.fasterxml.jackson.core:jackson-core in /semantickernel-bom

Bumps [com.fasterxml.jackson.core:jackson-core](https://github.com/FasterXML/jackson-core) from 2.18.0 to 2.18.6.
- [Commits](FasterXML/jackson-core@jackson-core-2.18.0...jackson-core-2.18.6)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-core
  dependency-version: 2.18.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

semantickernel-bom/pom.xml

@@ -13,7 +13,7 @@
     <url>https://www.github.com/microsoft/semantic-kernel</url>
 
     <properties>
-        <com.fasterxml.jackson.core.version>2.18.0</com.fasterxml.jackson.core.version>
+        <com.fasterxml.jackson.core.version>2.18.6</com.fasterxml.jackson.core.version>
     </properties>
 
     <build>