chore(deps-dev): bump @sifrr/dev from 0.0.20 to 0.0.21

Bumps [@sifrr/dev](https://github.com/sifrr/sifrr-dev) from 0.0.20 to 0.0.21.
- [Release notes](https://github.com/sifrr/sifrr-dev/releases)
- [Changelog](https://github.com/sifrr/sifrr-dev/blob/master/CHANGELOG.md)
- [Commits](sifrr/sifrr-dev@v0.0.20...v0.0.21)

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

package.json

@@ -37,7 +37,7 @@
     "@sifrr/storage": "^0.0.5"
   },
   "devDependencies": {
-    "@sifrr/dev": "0.0.20"
+    "@sifrr/dev": "0.0.21"
   },
   "dependencies": {
     "@sifrr/animate": "^0.0.3",

yarn.lock

@@ -781,10 +781,10 @@
   resolved "https://registry.yarnpkg.com/@sifrr/animate/-/animate-0.0.3.tgz#a54d586182b5f8a9b83a2ea6d342419847eccab8"
   integrity sha512-VaWuwk00oRyFuFwP1tkRYx0fiyDtrv1Lcf3oi1tNZDUQn4zAo3snhai3LYfMQHWYWoTWDS0KBAc8DoSpDZ9m6Q==
 
-"@sifrr/dev@0.0.20":
-  version "0.0.20"
-  resolved "https://registry.yarnpkg.com/@sifrr/dev/-/dev-0.0.20.tgz#a8a5f45e4314a9eaad11ab58e6cd225b1e9e9783"
-  integrity sha512-L14wxrs99raO9ODnjsaqCktS/vvCN3eCdFEFUyU+X0mr1uZ30Nl08QYa5qCEtnR6cgU1FTc42pP0Y4DJCFGxbA==
+"@sifrr/dev@0.0.21":
+  version "0.0.21"
+  resolved "https://registry.yarnpkg.com/@sifrr/dev/-/dev-0.0.21.tgz#0aa086dd8dd60a9d84ab7ca9610331681febbd83"
+  integrity sha512-JnIip5MbMsOcVqOmZVv01rhDq2J7JYSrJ55d/SlJjiARFbmMbWB+bZHRadxyI3kZ5yfvGY+0xftWAeu5u0x/mQ==
   dependencies:
     "@babel/core" "^7.4.0"
     "@babel/plugin-external-helpers" "^7.2.0"
@@ -833,7 +833,7 @@
     sinon "^7.3.2"
     ts-node "^8.3.0"
     typescript "^3.5.2"
-    uWebSockets.js uNetworking/uWebSockets.js#v15.11.0
+    uWebSockets.js "github:uNetworking/uWebSockets.js#v15.11.0"
 
 "@sifrr/eslint-config@^0.0.2":
   version "0.0.2"
@@ -6404,14 +6404,15 @@ typescript@^3.5.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.2.tgz#a09e1dc69bc9551cadf17dba10ee42cf55e5d56c"
   integrity sha512-7KxJovlYhTX5RaRbUdkAXN1KUZ8PwWlTzQdHV6xNqvuFOs7+WBo10TQUqT19Q/Jz2hk5v9TQDIhyLhhJY4p5AA==
 
+"uWebSockets.js@github:uNetworking/uWebSockets.js#v15.11.0":
+  version "15.11.0"
+  uid e7552889a50a7ffa654c41c99a9bad46dd0024c5
+  resolved "https://codeload.github.com/uNetworking/uWebSockets.js/tar.gz/e7552889a50a7ffa654c41c99a9bad46dd0024c5"
+
 uWebSockets.js@uNetworking/uWebSockets.js#v15.10.0:
   version "15.10.0"
   resolved "https://codeload.github.com/uNetworking/uWebSockets.js/tar.gz/db6a5f22ebb348ef328ff1fcbdc639f7bff49e11"
 
-uWebSockets.js@uNetworking/uWebSockets.js#v15.11.0:
-  version "15.11.0"
-  resolved "https://codeload.github.com/uNetworking/uWebSockets.js/tar.gz/e7552889a50a7ffa654c41c99a9bad46dd0024c5"
-
 uglify-js@3.4.x:
   version "3.4.10"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.10.tgz#9ad9563d8eb3acdfb8d38597d2af1d815f6a755f"