Fix needing deno.json

Author: mxcl

src/deps.ts

@@ -1,10 +1,10 @@
-import * as is_what from "is-what"
+import * as is_what from "https://deno.land/x/is_what@v4.1.15/src/index.ts"
 export { is_what }
 
-import { type PlainObject } from "is-what"
+import { type PlainObject } from "https://deno.land/x/is_what@v4.1.15/src/index.ts"
 export type { PlainObject }
 
-import * as outdent from "outdent"
+import * as outdent from "https://deno.land/x/outdent@v0.8.0/mod.ts"
 export { outdent }
 
 // importing super specifically to reduce final npm bundle size