dependency: bump org.eclipse.jgit from 5.11.0.202103091610-r to 5.12.0.202106070339-r#13

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dependabot/maven/org.eclipse.jgit-org.eclipse.jgit-5.12.0.202106070339-rromani/checkstyle:dependabot/maven/org.eclipse.jgit-org.eclipse.jgit-5.12.0.202106070339-rCopy head branch name to clipboard