refactor: use assume()

Author: webdeveric

src/predicate/isAny.ts

@@ -1,2 +1,4 @@
+import { assume } from './assume.js';
+
 /* eslint-disable @typescript-eslint/no-explicit-any */
-export const isAny = (_input: unknown): _input is any => true;
+export const isAny = assume<any>;

src/predicate/isUnknown.ts

@@ -1 +1,3 @@
-export const isUnknown = (_input: unknown): _input is unknown => true;
+import { assume } from './assume.js';
+
+export const isUnknown = assume<unknown>;