Revert "Revert "Upgrade JGit dependency to 5.2.1""

This reverts commit 42b5a32670e43b307ec2b0a34380e373b16be1fe.

services/git-bridge/pom.xml

@@ -100,13 +100,13 @@
         <dependency>
             <groupId>org.eclipse.jgit</groupId>
             <artifactId>org.eclipse.jgit</artifactId>
-            <version>4.10.0.201712302008-r</version>
+            <version>5.2.1.201812262042-r</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.eclipse.jgit/org.eclipse.jgit.http.server -->
         <dependency>
             <groupId>org.eclipse.jgit</groupId>
             <artifactId>org.eclipse.jgit.http.server</artifactId>
-            <version>4.10.0.201712302008-r</version>
+            <version>5.2.1.201812262042-r</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.xerial/sqlite-jdbc -->
         <dependency>