housekeeping: Update dependency eslint-plugin-simple-import-sort to v6 (#678)

frontend/packages/tools/.eslintrc.js

@@ -43,7 +43,7 @@ module.exports = {
   },
   reportUnusedDisableDirectives: true,
   rules: {
-    "simple-import-sort/sort": [
+    "simple-import-sort/imports": [
       "error",
       {
         // Groups taken from example, plus internal packages since plugin doesn't do import resolution.

frontend/packages/tools/package.json

@@ -46,7 +46,7 @@
     "eslint-plugin-prettier": "^3.1.1",
     "eslint-plugin-react": "^7.20.6",
     "eslint-plugin-react-hooks": "^4.1.2",
-    "eslint-plugin-simple-import-sort": "^5.0.0",
+    "eslint-plugin-simple-import-sort": "^6.0.0",
     "jest": "^24.9.0",
     "prettier": "^2.0.0",
     "react": "^16.8.0",

frontend/yarn.lock

@@ -8278,10 +8278,10 @@ eslint-plugin-react@^7.20.6:
     resolve "^1.18.1"
     string.prototype.matchall "^4.0.2"
-eslint-plugin-simple-import-sort@^5.0.0:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-simple-import-sort/-/eslint-plugin-simple-import-sort-5.0.3.tgz#9ae258ddada6efffc55e47a134afbd279eb31fc6"
-  integrity sha512-1rf3AWiHeWNCQdAq0iXNnlccnH1UDnelGgrPbjBBHE8d2hXVtOudcmy0vTF4hri3iJ0MKz8jBhmH6lJ0ZWZLHQ==
+eslint-plugin-simple-import-sort@^6.0.0:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-simple-import-sort/-/eslint-plugin-simple-import-sort-6.0.1.tgz#24a3af3b745dcd389c060db28e22d0f5e3edf86e"
+  integrity sha512-RfFnoi7fQtv7z9sZNJidIcZgWc0ZJe8uOPC3ldmatai4Igr5iDpzTmSUDEZKYm4TnrR01N0X32kfKvax7bivHQ==
 eslint-scope@^4.0.3:
   version "4.0.3"