Update dependency typescript to v3.9.0-dev.20200409

Author: renovate-bot

package.json

@@ -58,6 +58,6 @@
     "stylelint-declaration-block-no-ignored-properties": "2.3.0",
     "stylelint-no-unsupported-browser-features": "4.0.0",
     "stylelint-order": "4.0.0",
-    "typescript": "3.9.0-dev.20200406"
+    "typescript": "3.9.0-dev.20200409"
   }
 }

yarn.lock

@@ -14063,10 +14063,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.9.0-dev.20200406:
-  version "3.9.0-dev.20200406"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.0-dev.20200406.tgz#78c967dc739d75507370722387f5dd038b138d01"
-  integrity sha512-oDw6MZnp1bMrifgsisvC0Ea3Op8Uyajq88/1EBCi5J8lxuPLDgVTKm3uqArGpcwiX6QphMIWA124ZH2OQx+dzw==
+typescript@3.9.0-dev.20200409:
+  version "3.9.0-dev.20200409"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.0-dev.20200409.tgz#6635af89a4ae2679039a61c901f2cd83ce516856"
+  integrity sha512-S6rqgD9K1y3vva/2g6GSwtkg6RC8W74ssTq52NtpS/ujqptYOJIgWHnMK+QN9yjFk2fzJfH9/TIMeFnLkZyHZg==
 
 typescript@^3.9.0-beta:
   version "3.9.0-dev.20200405"