change open to be a dev dep

Signed-off-by: Sebastian Malton <sebastian@malton.name>

package.json

@@ -222,7 +222,6 @@
     "moment": "^2.26.0",
     "node-pty": "^0.9.0",
     "npm": "^6.14.8",
-    "open": "^7.3.1",
     "openid-client": "^3.15.2",
     "p-limit": "^3.1.0",
     "path-to-regexp": "^6.1.0",
@@ -335,6 +334,7 @@
     "node-loader": "^0.6.0",
     "node-sass": "^4.14.1",
     "nodemon": "^2.0.4",
+    "open": "^7.3.1",
     "patch-package": "^6.2.2",
     "postinstall-postinstall": "^2.1.0",
     "prettier": "^2.2.0",