Add CIPD support for bot assets

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2085473002

Review-Url: https://codereview.chromium.org/2085473002
diff --git a/.gitignore b/.gitignore
index ad2470e..5f339bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,8 +15,11 @@
 bower_components
 common
 gyp/build
+infra/bots/tools/luci-go/linux64/cipd
 infra/bots/tools/luci-go/linux64/isolate
+infra/bots/tools/luci-go/mac64/cipd
 infra/bots/tools/luci-go/mac64/isolate
+infra/bots/tools/luci-go/win64/cipd.exe
 infra/bots/tools/luci-go/win64/isolate.exe
 out
 platform_tools/android/apps/build