build(deps): bump com.fasterxml.jackson.core:jackson-core

Bumps [com.fasterxml.jackson.core:jackson-core](https://github.com/FasterXML/jackson-core) from 2.17.1 to 2.18.6.
- [Commits](FasterXML/jackson-core@jackson-core-2.17.1...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]

samples/client/petstore/java/feign/pom.xml

@@ -318,7 +318,7 @@
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <feign-version>13.2.1</feign-version>
         <feign-form-version>3.8.0</feign-form-version>
-        <jackson-version>2.17.1</jackson-version>
+        <jackson-version>2.18.6</jackson-version>
         <jackson-databind-version>2.17.1</jackson-databind-version>
         <jackson-databind-nullable-version>0.2.9</jackson-databind-nullable-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>