fix: explicitly specify a type of match method.

Author: usualoma

src/router/reg-exp-router/prepared-router.ts

@@ -64,7 +64,7 @@ export class PreparedRegExpRouter<T> implements Router<T> {
     return this.#matchers
   }
 
-  match = match
+  match: typeof match<Router<T>, T> = match
 }
 
 export const buildInitParams: (params: {

src/router/reg-exp-router/router.ts

@@ -205,7 +205,7 @@ export class RegExpRouter<T> implements Router<T> {
     }
   }
 
-  match = match;
+  match: typeof match<Router<T>, T> = match;
 
   [buildAllMatchersKey](): MatcherMap<T> {
     const matchers: MatcherMap<T> = {}