Bump org.eclipse.jgit (#7820)

Bumps org.eclipse.jgit from 5.11.1.202105131744-r to 5.12.0.202106070339-r.

---
updated-dependencies:
- dependency-name: org.eclipse.jgit:org.eclipse.jgit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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build.gradle

@@ -146,7 +146,7 @@ dependencies {
         exclude group: 'org.apache.lucene', module: 'lucene-sandbox'
     }
 
-    implementation group: 'org.eclipse.jgit', name: 'org.eclipse.jgit', version: '5.11.1.202105131744-r'
+    implementation group: 'org.eclipse.jgit', name: 'org.eclipse.jgit', version: '5.12.0.202106070339-r'
 
     implementation group: 'com.fasterxml.jackson.dataformat', name: 'jackson-dataformat-yaml', version: '2.12.3'
     implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: '2.12.3'