chore(deps): update dependency flow-copy-source to v2

package.json

@@ -60,7 +60,7 @@
     "eslint-plugin-jsx-a11y": "6.0.3",
     "eslint-plugin-react": "7.8.2",
     "flow-bin": "0.74.0",
-    "flow-copy-source": "1.3.0",
+    "flow-copy-source": "2.0.0",
     "flow-typed": "2.4.0",
     "gh-pages": "1.2.0",
     "npm-run-all": "4.1.3",

yarn.lock

@@ -4078,12 +4078,12 @@ flow-bin@0.74.0:
   version "0.74.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.74.0.tgz#8017bb00efb37cbe8d81fbb7f464038bde06adc9"
 
-flow-copy-source@1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/flow-copy-source/-/flow-copy-source-1.3.0.tgz#591b153f5c01e8fc566c64a97290ea9103b7f1ea"
+flow-copy-source@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/flow-copy-source/-/flow-copy-source-2.0.0.tgz#e0984a434fefb5995571d7a28cbff8c3cdda63fe"
   dependencies:
     chokidar "^2.0.0"
-    fs-extra "^5.0.0"
+    fs-extra "^6.0.1"
     glob "^7.0.0"
     kefir "^3.7.3"
     yargs "^11.0.0"
@@ -4188,6 +4188,14 @@ fs-extra@^5.0.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-extra@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-6.0.1.tgz#8abc128f7946e310135ddc93b98bddb410e7a34b"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-write-stream-atomic@^1.0.8:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"