[PLAT-13849]Upgrade bouncycastle library

Summary: Upgrade bouncycastle library in build.sbt

Test Plan:
Manually test build
iTest pipelines

Reviewers: muthu, amalyshev

Reviewed By: muthu, amalyshev

Differential Revision: https://phorge.dev.yugabyte.com/D42747

Author: Deepti-yb

managed/build.sbt

@@ -171,7 +171,7 @@ libraryDependencies ++= Seq(
   // https://github.com/YugaByte/cassandra-java-driver/releases
   "com.yugabyte" % "cassandra-driver-core" % "3.8.0-yb-7",
   "org.yaml" % "snakeyaml" % "2.1",
-  "org.bouncycastle" % "bcpkix-jdk15on" % "1.61",
+  "org.bouncycastle" % "bcpkix-jdk18on" % "1.80",
   "org.springframework.security" % "spring-security-core" % "5.8.16",
   "com.amazonaws" % "aws-java-sdk-ec2" % "1.12.768",
   "com.amazonaws" % "aws-java-sdk-kms" % "1.12.768",