Upload jamf into the unsigned builds dir directly, don't archive it.

It was accidentally added the default archive in
https://chromium-review.googlesource.com/c/chromium/src/+/2374513

Bug: 1058102, 1122538
Fixed: 1122538
Change-Id: I18ba7213aa72800a234a29576c5163820890c2b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2380133
Commit-Queue: Michael Moss <mmoss@chromium.org>
Auto-Submit: Joshua Pawlicki <waffles@chromium.org>
Reviewed-by: Michael Moss <mmoss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802338}

chrome/tools/build/mac/FILES.cfg

@@ -150,6 +150,8 @@ FILES = [
   {
     'filename': 'gen/chrome/app/policy/mac/jamf.json',
     'buildtype': ['official'],
+    'archive': 'jamf.json',
+    'direct_archive': 1,
     'optional': ['official'],
   }
 ]