Bump jetty.version from 9.4.36.v20210114 to 9.4.38.v20210224 in /core

Bumps `jetty.version` from 9.4.36.v20210114 to 9.4.38.v20210224.

Updates `jetty-server` from 9.4.36.v20210114 to 9.4.38.v20210224
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.36.v20210114...jetty-9.4.38.v20210224)

Updates `jetty-servlet` from 9.4.36.v20210114 to 9.4.38.v20210224
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.36.v20210114...jetty-9.4.38.v20210224)

Updates `jetty-webapp` from 9.4.36.v20210114 to 9.4.38.v20210224
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.36.v20210114...jetty-9.4.38.v20210224)

Signed-off-by: dependabot[bot] <support@github.com>

Closes #162

Change-Id: I6794253f8de9fda094ba07c157cf818535bf0bc1

core/pom.xml

@@ -10,7 +10,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<spring.version>5.3.4</spring.version>
 		<jersey.version>1.19.4</jersey.version>
-		<jetty.version>9.4.36.v20210114</jetty.version>
+		<jetty.version>9.4.38.v20210224</jetty.version>
 		<hibernate.version>5.4.28.Final</hibernate.version>
 		<flyway.version>7.6.0</flyway.version>
 		<log4j.version>2.14.0</log4j.version>