Update protobuf, skylib, rules_go, grpc-gateway dependencies (#5657)

* Update dependencies
* Merge branch 'master' into update-deps
* Merge refs/heads/master into update-deps
* Update WORKSPACE

WORKSPACE

@@ -5,11 +5,11 @@ load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
 http_archive(
     name = "bazel_toolchains",
-    sha256 = "b5a8039df7119d618402472f3adff8a1bd0ae9d5e253f53fcc4c47122e91a3d2",
-    strip_prefix = "bazel-toolchains-2.1.1",
+    sha256 = "144290c4166bd67e76a54f96cd504ed86416ca3ca82030282760f0823c10be48",
+    strip_prefix = "bazel-toolchains-3.1.1",
     urls = [
-        "https://github.com/bazelbuild/bazel-toolchains/releases/download/2.1.1/bazel-toolchains-2.1.1.tar.gz",
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/2.1.1.tar.gz",
+        "https://github.com/bazelbuild/bazel-toolchains/releases/download/3.1.1/bazel-toolchains-3.1.1.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/3.1.1.tar.gz",
     ],
 )
 
@@ -45,11 +45,17 @@ rbe_toolchains_config()
 
 http_archive(
     name = "bazel_skylib",
-    sha256 = "2ea8a5ed2b448baf4a6855d3ce049c4c452a6470b1efd1504fdb7c1c134d220a",
-    strip_prefix = "bazel-skylib-0.8.0",
-    url = "https://github.com/bazelbuild/bazel-skylib/archive/0.8.0.tar.gz",
+    sha256 = "97e70364e9249702246c0e9444bccdc4b847bed1eb03c5a3ece4f83dfe6abc44",
+    urls = [
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.0.2/bazel-skylib-1.0.2.tar.gz",
+        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.0.2/bazel-skylib-1.0.2.tar.gz",
+    ],
 )
 
+load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
+
+bazel_skylib_workspace()
+
 http_archive(
     name = "bazel_gazelle",
     sha256 = "d8c45ee70ec39a57e7a05e5027c32b1576cc7f16d9dd37135b0eddde45cf1b10",
@@ -75,19 +81,13 @@ http_archive(
 
 http_archive(
     name = "io_bazel_rules_go",
-    sha256 = "142dd33e38b563605f0d20e89d9ef9eda0fc3cb539a14be1bdb1350de2eda659",
+    sha256 = "7b9bbe3ea1fccb46dcfa6c3f3e29ba7ec740d8733370e21cdc8937467b4a4349",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.22.2/rules_go-v0.22.2.tar.gz",
-        "https://github.com/bazelbuild/rules_go/releases/download/v0.22.2/rules_go-v0.22.2.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.22.4/rules_go-v0.22.4.tar.gz",
+        "https://github.com/bazelbuild/rules_go/releases/download/v0.22.4/rules_go-v0.22.4.tar.gz",
     ],
 )
 
-http_archive(
-    name = "build_bazel_rules_nodejs",
-    sha256 = "0942d188f4d0de6ddb743b9f6642a26ce1ad89f09c0035a9a5ca5ba9615c96aa",
-    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/0.38.1/rules_nodejs-0.38.1.tar.gz"],
-)
-
 git_repository(
     name = "graknlabs_bazel_distribution",
     commit = "962f3a7e56942430c0ec120c24f9e9f2a9c2ce1a",
@@ -252,7 +252,7 @@ go_repository(
 
 git_repository(
     name = "com_google_protobuf",
-    commit = "4cf5bfee9546101d98754d23ff378ff718ba8438",
+    commit = "4059c61f27eb1b06c4ee979546a238be792df0a4",
     remote = "https://github.com/protocolbuffers/protobuf",
     shallow_since = "1558721209 -0700",
 )
@@ -1110,8 +1110,9 @@ go_repository(
 
 go_repository(
     name = "grpc_ecosystem_grpc_gateway",
-    commit = "da7a886035e25b2f274f89b6f3c64bf70a9f6780",
     importpath = "github.com/grpc-ecosystem/grpc-gateway",
+    sum = "h1:IOPK2xMPP3aV6/NPt4jt//ELFo3Vv8sDVD8j3+tleDU=",
+    version = "v1.14.4",
 )
 
 go_repository(