Update buildtools version to fix local buildifier

Note that CI didn't catch it because we were running the version of buildifier included in the docker image on CircleCI

Author: alexeagle

WORKSPACE

@@ -11,13 +11,13 @@ workspace(name = "angular_bazel_example")
 # This commit matches the version of buildifier in angular/ngcontainer
 # If you change this, also check if it matches the version in the angular/ngcontainer
 # version in /.circleci/config.yml
-BAZEL_BUILDTOOLS_VERSION = "82b21607e00913b16fe1c51bec80232d9d6de31c"
+BAZEL_BUILDTOOLS_VERSION = "49a6c199e3fbf5d94534b2771868677d3f9c6de9"
 
 http_archive(
     name = "com_github_bazelbuild_buildtools",
     url = "https://github.com/bazelbuild/buildtools/archive/%s.zip" % BAZEL_BUILDTOOLS_VERSION,
     strip_prefix = "buildtools-%s" % BAZEL_BUILDTOOLS_VERSION,
-    sha256 = "edb24c2f9c55b10a820ec74db0564415c0cf553fa55e9fc709a6332fb6685eff",
+    sha256 = "edf39af5fc257521e4af4c40829fffe8fba6d0ebff9f4dd69a6f8f1223ae047b",
 )
 
 # Runs the TypeScript compiler