fix(TS): add explicit annotation to Query type (#260)

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**What**: Bug

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**Why**: The existing typescript definitions fail to compile with `--noImplicitAny` enabled. 

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typings/index.d.ts

@@ -3,7 +3,7 @@ import {queries, BoundFunction} from 'dom-testing-library'
 export * from 'dom-testing-library'
 
 interface Query extends Function {
-  (container: HTMLElement, ...args): HTMLElement[] | HTMLElement | null
+  (container: HTMLElement, ...args: any[]): HTMLElement[] | HTMLElement | null
 }
 
 interface Queries {