fix: modules/openapi-generator/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEGUAVA-5710356
- https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEGUAVA-1015415

modules/openapi-generator/pom.xml

@@ -259,7 +259,7 @@
         <guava-version>26.0-jre</guava-version>
         <generex-version>1.0.2</generex-version>
         <rxgen-version>1.3</rxgen-version>
-        <jackson-version>2.10.1</jackson-version>
+        <jackson-version>2.17.3</jackson-version>
         <jackson-threetenbp-version>2.10.0</jackson-threetenbp-version>
         <kotlin-version>1.3.60</kotlin-version>
     </properties>