Bump preact from 10.0.0-alpha.4 to 10.0.0-beta.0

Bumps [preact](https://github.com/developit/preact) from 10.0.0-alpha.4 to 10.0.0-beta.0.
- [Release notes](https://github.com/developit/preact/releases)
- [Commits](https://github.com/developit/preact/compare/10.0.0-alpha.4...10.0.0-beta.0)
Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -90,7 +90,7 @@
     "npm-packlist": "^1.1.12",
     "postcss": "^7.0.13",
     "postcss-url": "^8.0.0",
-    "preact": "10.0.0-alpha.4",
+    "preact": "10.0.0-beta.0",
     "prettier": "1.17.0",
     "proxyquire": "^2.1.0",
     "proxyquire-universal": "^2.1.0",

yarn.lock

@@ -7735,12 +7735,10 @@ preact-render-to-string@^4.1.0:
   dependencies:
     pretty-format "^3.8.0"
 
-preact@10.0.0-alpha.4:
-  version "10.0.0-alpha.4"
-  resolved "https://registry.yarnpkg.com/preact/-/preact-10.0.0-alpha.4.tgz#c0cf81771fa7aaa3e71adf8741b1e341e2cc4bd1"
-  integrity sha512-HD8ocvxID8NjC6m0rZhY1HbbBIHBKw7E4/0nu/zulPcGhgXEjm2BD9Tt8wQdoa/nea3APJ72TxRJSg2oQmU3uA==
-  dependencies:
-    prop-types "^15.6.2"
+preact@10.0.0-beta.0:
+  version "10.0.0-beta.0"
+  resolved "https://registry.yarnpkg.com/preact/-/preact-10.0.0-beta.0.tgz#8d53947b167449c09a678fefc2085c0f56ed34bd"
+  integrity sha512-BKd77y7ZpPLybjtM35DJtzXj+sxlAt29MCMGOJnSrsv1jt30aE/wS9qoU9nL8ih+yhal3B22mGAvuh2mGLAFMg==
 
 prelude-ls@~1.1.2:
   version "1.1.2"