fix(deps): update dependency webpack-hot-middleware to v2.21.2

This Pull Request updates dependency webpack-hot-middleware from v2.21.0 to v2.21.2

Note: This PR was created on a configured schedule ("every weekend" in timezone Europe/Paris) and will not receive updates outside those times.

Commits

#### v2.21.1 - [`319c565`](https://github.com/glenjamin/webpack-hot-middleware/commit/319c565a764c1de2f6e590fa26919b40999c1977) update README with koa-webpack - [`6086db2`](https://github.com/glenjamin/webpack-hot-middleware/commit/6086db22e0bc3933377dc96fff3b81e11c234fe3) Merge pull request #276 from shellscape/master - [`757cb54`](https://github.com/glenjamin/webpack-hot-middleware/commit/757cb547e616f119aa6867add86b450e8c106e57) koa-webpack no longer depends on this module - [`5cdf04b`](https://github.com/glenjamin/webpack-hot-middleware/commit/5cdf04be63b5c1dd9df6d9dd2daabc030afd1141) Merge pull request #282 from olsonpm/fix-readme - [`43c3a0e`](https://github.com/glenjamin/webpack-hot-middleware/commit/43c3a0e86a1c51c2338f8c3a49e22462bf2fcc77) Update README.md - [`a257b08`](https://github.com/glenjamin/webpack-hot-middleware/commit/a257b08126ab0556986f9a43a2ee1b151c487cf0) Merge pull request #285 from kagawagao/master - [`9890dcc`](https://github.com/glenjamin/webpack-hot-middleware/commit/9890dccce96bda9165f1bb0dd35ef849989c1cc9) fixed call to bundle file in example - [`dfd30d6`](https://github.com/glenjamin/webpack-hot-middleware/commit/dfd30d6940c1ed89f6c5bbf8ced354c715b53973) Merge pull request #286 from silverlight513/example-fix - [`e052aed`](https://github.com/glenjamin/webpack-hot-middleware/commit/e052aedc6956defe27eccd929969a8811a8bcafb) Support plugin API of webpack v3 and v4 - [`2da2e24`](https://github.com/glenjamin/webpack-hot-middleware/commit/2da2e24f8da52d7eed374ba4182f84b4c9c15cc2) Upgrade example to webpack v4 - [`ae79f6a`](https://github.com/glenjamin/webpack-hot-middleware/commit/ae79f6a143e12e50cbb160b6bda293dfdb28b071) 2.21.1 #### v2.21.2 - [`5e7112f`](https://github.com/glenjamin/webpack-hot-middleware/commit/5e7112f35b5a1e18fd52b24b2b038a9901ffb2f7) use 'invalid' hook instead - [`6b756cc`](https://github.com/glenjamin/webpack-hot-middleware/commit/6b756cc359ee737c2bdc3f8d3e0d6606d9f527e2) Merge pull request #288 from qazbnm456/master - [`7837da1`](https://github.com/glenjamin/webpack-hot-middleware/commit/7837da1001f466cfc709c5b8eefaf6b1e4021498) refactor: use native url lib - [`c975a09`](https://github.com/glenjamin/webpack-hot-middleware/commit/c975a0952a044c1acb7ab423ff62b24867a11319) Merge pull request #289 from Runrioter/master - [`7bc3f34`](https://github.com/glenjamin/webpack-hot-middleware/commit/7bc3f3443aaf3f4d3ebb7edbfc1da4bf8920ffdb) 2.21.2

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algolia / community-project-boilerplate

fix(deps): update dependency webpack-hot-middleware to v2.21.2 #78