chore(deps): bump minimist from 1.2.5 to 1.2.6 in /src/playground

Bumps [minimist](https://github.com/substack/minimist) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/substack/minimist/releases)
- [Commits](https://github.com/substack/minimist/compare/1.2.5...1.2.6)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/playground/yarn.lock

@@ -229,9 +229,9 @@ mime@^1.4.1:
   integrity sha1-Ms2eXGRVO9WNGaVor0Uqz/BJgbE=
 
 minimist@^1.2.5:
-  version "1.2.5"
-  resolved "https://registry.nlark.com/minimist/download/minimist-1.2.5.tgz?cache=0&sync_timestamp=1618847181284&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fminimist%2Fdownload%2Fminimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
-  integrity sha1-Z9ZgFLZqaoqqDAg8X9WN9OTpdgI=
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
+  integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
 
 monaco-editor-webpack-plugin@^3.1.0:
   version "3.1.0"