[AIENG-183] Update src/main/java/com/launchableinc/ingest/commits/CommitGraphCollector.java

Co-authored-by: Ryosuke Yabuki <[email protected]>

Author: kohsuke

src/main/java/com/launchableinc/ingest/commits/CommitGraphCollector.java

@@ -189,7 +189,7 @@ public void transfer(URL service, Authenticator authenticator, boolean enableTim
               files.writeTo(baos);
               TarArchiveInputStream tar =
                   new TarArchiveInputStream(
-                      new GZIPInputStream(new ByteArrayInputStream(baos.toByteArray())),
+                      new ByteArrayInputStream(baos.toByteArray()),
                       "UTF-8");
               TarArchiveEntry entry;
               boolean first = true;