Change default compressionMethod to gzip

services/git-bridge/conf/example_config.json

@@ -27,6 +27,6 @@
         "lowGiB": 128,
         "highGiB": 256,
         "intervalMillis": 3600000,
-        "compressionMethod": "bzip2"
+        "compressionMethod": "gzip"
     }
 }

services/git-bridge/conf/local.json

@@ -23,6 +23,6 @@
         "lowGiB": 128,
         "highGiB": 256,
         "intervalMillis": 3600000,
-        "compressionMethod": "bzip2"
+        "compressionMethod": "gzip"
     }
 }