ng add error - catch clause variable is not an Error instance

### Version info

**Angular:**. 14.2.0

### How to reproduce these conditions

1. ng new App
2. ng add @angular/fire

### Debug output

** Errors in the JavaScript console **

An unhandled exception occurred: catch clause variable is not an Error instance
See "/private/tmp/ng-qfEJEW/angular-errors.log" for further details.

** Output from `/private/tmp/ng-qfEJEW/angular-errors.log` **

[error] AssertionError [ERR_ASSERTION]: catch clause variable is not an Error instance
at assertIsError (/xxx/node_modules/@angular/cli/src/utilities/error.js:19:26)
at AddCommandModule.runSchematic (/xxx/node_modules/@angular/cli/src/command-builder/schematics-command-module.js:304:43)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async AddCommandModule.executeSchematic (/xxx/node_modules/@angular/cli/src/commands/add/cli.js:283:20)
at async AddCommandModule.handler (/xxx/node_modules/@angular/cli/src/command-builder/command-module.js:111:24)

使用 Angular 14.2.0，通过先运行 `ng new App` 再运行 `ng add @angular/fire` 来重现该失败。首先检查 stack trace 所示位置的 `src/utilities/error.js`、`src/command-builder/schematics-command-module.js` 和 `src/commands/add/cli.js`。当 add 命令在没有触发 catch 子句断言的情况下完成，并且能够正确报告错误时，即视为完成。

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