fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMFASTERXMLJACKSONCORE-10500754

Author: snyk-bot

pom.xml

@@ -128,7 +128,7 @@
         <commons-io.version>2.6</commons-io.version>
         <commons-text.version>1.9</commons-text.version>
         <guava.version>30.1-jre</guava.version>
-        <jjwt.version>0.9.1</jjwt.version>
+        <jjwt.version>0.12.0</jjwt.version>
         <jose4j.version>0.7.6</jose4j.version>
         <jsoup.version>1.14.3</jsoup.version>
         <jquery.version>3.5.1</jquery.version>