Bump javassist from 3.27.0-GA to 3.28.0-GA in /core

Bumps [javassist](https://github.com/jboss-javassist/javassist) from 3.27.0-GA to 3.28.0-GA.
- [Release notes](https://github.com/jboss-javassist/javassist/releases)
- [Commits](https://github.com/jboss-javassist/javassist/commits)

Closes #188

Signed-off-by: dependabot[bot] <support@github.com>
Change-Id: I2e3f5e334c468a81132dc2d841b744051628077e
diff --git a/core/pom.xml b/core/pom.xml
index ca6a68d..eb0c8a3 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -228,7 +228,7 @@
 		<dependency>
 			<groupId>org.javassist</groupId>
 			<artifactId>javassist</artifactId>
-			<version>3.27.0-GA</version>
+			<version>3.28.0-GA</version>
 		</dependency>
 
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