Upgrade Preact

This fixes an issue with `useLayoutEffect` where it could run before a
component's DOM node became connected to the document, preventing the
effect from measuring the node.

package.json

@@ -88,7 +88,7 @@
     "npm-packlist": "^1.1.12",
     "postcss": "^7.0.13",
     "postcss-url": "^8.0.0",
-    "preact": "10.0.1",
+    "preact": "^10.0.4",
     "prettier": "1.18.2",
     "puppeteer": "^2.0.0",
     "query-string": "^3.0.1",

yarn.lock

@@ -6704,10 +6704,10 @@ preact-render-to-string@^4.1.0:
   dependencies:
     pretty-format "^3.8.0"
 
-preact@10.0.1:
-  version "10.0.1"
-  resolved "https://registry.yarnpkg.com/preact/-/preact-10.0.1.tgz#16451887a8490dd534d60d1bc7d2ff4a70f7e0ee"
-  integrity sha512-lq7jo1rwwCd1YkiBcuOxRc3I0y1FZACa6O7tgNXt47QZJtSlLEE53f/FDNsLtiB2IVQTHbaey20TjSPmejhDyQ==
+preact@^10.0.4:
+  version "10.0.4"
+  resolved "https://registry.yarnpkg.com/preact/-/preact-10.0.4.tgz#7c1a2e074ea64a2d3c83349f7f55304ed0e017a7"
+  integrity sha512-x9QW91LVQZ4lkMZ8gOucyaW1414MEtgSC//JwlxR0nfq/QEdbaLQZrWFFWgjtGyNBBXg2P0TZ6u6W+XlpjcK2Q==
 
 prelude-ls@~1.1.2:
   version "1.1.2"