bazel: update repositories with latest (#360)

Author: noahdietz

repositories.bzl

@@ -195,8 +195,8 @@ def com_googleapis_gapic_generator_go_repositories():
         go_repository,
         name = "org_golang_google_genproto",
         importpath = "google.golang.org/genproto",
-        sum = "h1:5aI3/f/3eCZps9xwoEnmgfDJDhMbnJpfqeGpjVNgVEI=",
-        version = "v0.0.0-20200319113533-08878b785e9c",
+        sum = "h1:j7CmVRD4Kec0+f8VuBAc2Ak2MFfXm5Q2/RxuJLL+76E=",
+        version = "v0.0.0-20200413115906-b5235f65be36",
     )
     _maybe(
         go_repository,

rules_go_gapic/go_gapic_repositories.bzl

@@ -26,8 +26,8 @@ def go_gapic_repositories():
         go_repository,
         name = "org_golang_google_api",
         importpath = "google.golang.org/api",
-        sum = "h1:jz2KixHX7EcCPiQrySzPdnYT7DbINAypCqKZ1Z7GM40=",
-        version = "v0.20.0",
+        sum = "h1:zS+Q/CJJnVlXpXQVIz+lH0ZT2lBuT2ac7XD8Y/3w6hY=",
+        version = "v0.21.0",
     )
     _maybe(
         go_repository,