Regenerate LUCI cfg files.

A change to the protobuf library used by lucicfg means that generated
text protos now use {...} instead of <...>.

This CL was generated by running:
$ ./main.star
$ ./dev.star

I also updated the required lucicfg version in main.star and dev.star
to 1.15.0 so that this doesn't get changed back by a developer running
an earlier version of lucicfg.

Change-Id: I30db369e8e2ccaee3a8fd68a74595f9ba0523ad0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2237440
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>
Commit-Queue: Garrett Beaty <gbeaty@chromium.org>
Auto-Submit: Joey Scarr <jsca@chromium.org>
Cr-Commit-Position: refs/heads/master@{#776989}

infra/config/dev.star

@@ -9,7 +9,7 @@
 load('//project.star', 'master_only_exec')
 
 lucicfg.check_version(
-    min = '1.13.1',
+    min = '1.15.0',
     message = 'Update depot_tools',
 )