Update TypeScript to v4.6+

[teppeis]

tsc throws errors with typescript@4.6.

$ npm run build       

> @cybozu/duck@0.33.3 build
> tsc

node_modules/@types/verror/index.d.ts:31:5 - error TS2416: Property 'cause' in type 'VError' is not assignable to the same property in base type 'Error'.
  Property 'message' is missing in type '() => Error | undefined' but required in type 'Error'.

31     cause(): Error | undefined;
       ~~~~~

  node_modules/typescript/lib/lib.es5.d.ts:1023:5
    1023     message: string;
             ~~~~~~~
    'message' is declared here.

node_modules/@types/verror/index.d.ts:31:5 - error TS2425: Class 'Error' defines instance member property 'cause', but extended class 'VError' defines it as instance member function.

31     cause(): Error | undefined;
       ~~~~~


Found 2 errors in the same file, starting at: node_modules/@types/verror/index.d.ts:31

It will be resolved in next TypeScript 4.8.

See

• [@types/verror] incompatible with TypeScript 4.6 · Discussion #59093 · DefinitelyTyped/DefinitelyTyped
• Set Error.prototype.cause type to unknown (#70) by iamharbie · Pull Request #49639 · microsoft/TypeScript
• [verror]: Fix @types/verror to work with es2022.error on TS 4.8 by voxpelli · Pull Request #61199 · DefinitelyTyped/DefinitelyTyped