build(deps): bump lodash from 4.17.20 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

yarn.lock

@@ -324,9 +324,10 @@ asn1@~0.2.3:
   dependencies:
     safer-buffer "~2.1.0"
 
-"assemblyscript@git+https://github.com/AssemblyScript/assemblyscript.git#36040d5b5312f19a025782b5e36663823494c2f3":
+"assemblyscript@https://github.com/AssemblyScript/assemblyscript#36040d5b5312f19a025782b5e36663823494c2f3":
   version "0.6.0"
-  resolved "git+https://github.com/AssemblyScript/assemblyscript.git#36040d5b5312f19a025782b5e36663823494c2f3"
+  uid "36040d5b5312f19a025782b5e36663823494c2f3"
+  resolved "https://github.com/AssemblyScript/assemblyscript#36040d5b5312f19a025782b5e36663823494c2f3"
   dependencies:
     "@protobufjs/utf8" "^1.1.0"
     binaryen "77.0.0-nightly.20190407"
@@ -3128,9 +3129,9 @@ lodash.upperfirst@^4.3.1:
   integrity sha1-E2Xt9DFIBIHvDRxolXpe2Z1J984=
 
 lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.20, lodash@^4.17.4:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@4.0.0:
   version "4.0.0"