Support mocha ^11.0 as peer dependency

[leorolland]

Mocha 11 is out,

When trying to install ts-mocha with mocha 11, I get the following error

$ npm i ts-mocha --save-dev
npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving: [email protected]
npm error Found: [email protected]
npm error node_modules/mocha
npm error   dev mocha@"^11.0.1" from the root project
npm error
npm error Could not resolve dependency:
npm error peer mocha@"^3.X.X || ^4.X.X || ^5.X.X || ^6.X.X || ^7.X.X || ^8.X.X || ^9.X.X || ^10.X.X" from [email protected]
npm error node_modules/ts-mocha
npm error   dev ts-mocha@"*" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.

Unfortunately, ts-mocha only supports up to mocha 10 in peer dependency from package.json.