Update dependency cross-env to v7

package.json

@@ -40,7 +40,7 @@
     "@types/react-router-dom": "^5.1.3",
     "bestzip": "^2.1.2",
     "copy-and-watch": "^0.1.4",
-    "cross-env": "^5.2.0",
+    "cross-env": "^7.0.0",
     "eslint": "^6.6.0",
     "eslint-config-airbnb": "^18.0.1",
     "eslint-config-prettier": "^6.5.0",

yarn.lock

@@ -3904,12 +3904,12 @@ create-hmac@^1.1.0, create-hmac@^1.1.4, create-hmac@^1.1.7:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cross-env@^5.2.0:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-5.2.1.tgz#b2c76c1ca7add66dc874d11798466094f551b34d"
-  integrity sha512-1yHhtcfAd1r4nwQgknowuUNfIT9E8dOMMspC36g45dN+iD1blloi7xp8X/xAIDnjHWyt1uQ8PHk2fkNaym7soQ==
+cross-env@^7.0.0:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-7.0.3.tgz#865264b29677dc015ba8418918965dd232fc54cf"
+  integrity sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==
   dependencies:
-    cross-spawn "^6.0.5"
+    cross-spawn "^7.0.1"
 
 [email protected]:
   version "7.0.1"
@@ -3931,7 +3931,7 @@ cross-spawn@^6.0.0, cross-spawn@^6.0.5:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-cross-spawn@^7.0.0:
+cross-spawn@^7.0.0, cross-spawn@^7.0.1:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
   integrity sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==