fix: upgrade io.nats:jnats from 2.18.1 to 2.20.2

Snyk has created this PR to upgrade io.nats:jnats from 2.18.1 to 2.20.2.

See this package in maven:
io.nats:jnats

See this project in Snyk:
https://app.snyk.io/org/softwaremill-partner-nfr-default/project/2d77d198-1871-4e4b-9dfe-70e40b77c3b5?utm_source=github-enterprise&utm_medium=referral&page=upgrade-pr

pom.xml

@@ -22,7 +22,7 @@
         <grpc.version>1.64.0</grpc.version>
         <javafaker.version>1.0.2</javafaker.version>
         <json.version>20240303</json.version>
-        <jnats.version>2.18.1</jnats.version>
+        <jnats.version>2.20.2</jnats.version>
         <slf4j-api.version>2.0.9</slf4j-api.version>
     </properties>