Bump jenkins-test-harness from 2.62 to 2.63

Bumps [jenkins-test-harness](https://github.com/jenkinsci/jenkins-test-harness) from 2.62 to 2.63.
- [Release notes](https://github.com/jenkinsci/jenkins-test-harness/releases)
- [Commits](jenkinsci/jenkins-test-harness@jenkins-test-harness-2.62...jenkins-test-harness-2.63)

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

pom.xml

@@ -56,7 +56,7 @@
     <jenkins-war.version>${jenkins.version}</jenkins-war.version>
     <jenkins-bom.version>${jenkins.version}</jenkins-bom.version>
 
-    <jenkins-test-harness.version>2.62</jenkins-test-harness.version>
+    <jenkins-test-harness.version>2.63</jenkins-test-harness.version>
 
     <hpi-plugin.version>3.13</hpi-plugin.version>
     <stapler-plugin.version>1.17</stapler-plugin.version>