Bump `@hypothesis/frontend-build` to 1.2.0

package.json

@@ -11,7 +11,7 @@
     "@babel/core": "^7.1.6",
     "@babel/preset-env": "^7.1.6",
     "@babel/preset-react": "^7.0.0",
-    "@hypothesis/frontend-build": "^1.1.0",
+    "@hypothesis/frontend-build": "1.2.0",
     "@hypothesis/frontend-shared": "4.4.0",
     "@octokit/rest": "^18.0.0",
     "@rollup/plugin-babel": "^5.3.0",

yarn.lock

@@ -988,7 +988,7 @@
   resolved "https://registry.yarnpkg.com/@humanwhocodes/object-schema/-/object-schema-1.2.1.tgz#b520529ec21d8e5945a1851dfd1c32e94e39ff45"
   integrity sha512-ZnQMnLV4e7hDlUvw8H+U8ASL02SS2Gn6+9Ac3wGGLIe7+je2AeAOxPY+izIPJDfFDb7eDjev0Us8MO1iFRN8hA==
 
-"@hypothesis/frontend-build@^1.1.0":
+"@hypothesis/frontend-build@1.2.0":
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@hypothesis/frontend-build/-/frontend-build-1.2.0.tgz#2938212d0ac655484692e9fbcac26f301d8b3638"
   integrity sha512-iPNS6bkXVujNEKUUSaFLgoQU38qfH5zA3ox9gUP2rVTWuU8Tt2VsZDp+MiPcqFSqV3WVkBWM/aydoCKUgetA7A==