Bump jettison from 1.5.0 to 1.5.1 in /plugins/discovery-azure-classic

Bumps [jettison](https://github.com/jettison-json/jettison) from 1.5.0 to 1.5.1.
- [Release notes](https://github.com/jettison-json/jettison/releases)
- [Commits](jettison-json/jettison@jettison-1.5.0...jettison-1.5.1)

---
updated-dependencies:
- dependency-name: org.codehaus.jettison:jettison
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

plugins/discovery-azure-classic/build.gradle

@@ -59,7 +59,7 @@ dependencies {
   api "com.sun.jersey:jersey-client:${versions.jersey}"
   api "com.sun.jersey:jersey-core:${versions.jersey}"
   api "com.sun.jersey:jersey-json:${versions.jersey}"
-  api 'org.codehaus.jettison:jettison:1.5.0'
+  api 'org.codehaus.jettison:jettison:1.5.1'
   api 'com.sun.xml.bind:jaxb-impl:2.2.3-1'
 
   // HACK: javax.xml.bind was removed from default modules in java 9, so we pull the api in here,