[COIL] updating skylab_cli to pull from main

BUG=b:169251128
TEST=cq

Change-Id: I7e871af324d83e6ae6c3adca1c1d352f03c43c2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/2912294
Tested-by: Derek Beckett <[email protected]>
Reviewed-by: C Shapiro <[email protected]>
Reviewed-by: Allen Li <[email protected]>
Commit-Queue: Derek Beckett <[email protected]>
diff --git a/cli/skylab_utils.py b/cli/skylab_utils.py
index 76d3951..82ab1a4 100644
--- a/cli/skylab_utils.py
+++ b/cli/skylab_utils.py
@@ -124,7 +124,7 @@
 
             logging.info('Inventory repo was already initialized, start '
                          'pulling.')
-            self.git_repo.checkout('master')
+            self.git_repo.checkout('main')
             self.git_repo.pull()
         else:
             logging.info('No inventory repo was found, start cloning.')
@@ -151,7 +151,7 @@
 
         remote = self.git_repo.remote()
         output = self.git_repo.upload_cl(
-                remote, 'master', draft=draft, dryrun=dryrun)
+                remote, 'main', draft=draft, dryrun=dryrun)
 
         if not dryrun:
             change_number = extract_inventory_change(output)