bazel: limit resources in CI

Builds are timing out, eg:

https://travis-ci.org/whilp/dotfiles/builds/438142354

Perhaps this is because bazel's estimates for available resources
aren't super when running in docker.

bazelbuild/bazel#3645
bazelbuild/bazel#2946

.bazelrc

@@ -3,6 +3,7 @@ build --show_progress --show_loading_progress --show_progress_rate_limit=60.0
 
 build:check --all_incompatible_changes
 
+build:ci --local_resources=14336,8.0,1.0
 build:ci --genrule_strategy=standalone
 build:ci --sandbox_debug
 build:ci --spawn_strategy=standalone