node interop tests failing due to npm build error #23466
Description
I think this is the relevant error:
> @grpc/proto-loader@0.5.5 compile /var/local/git/grpc-node/packages/proto-loader
> tsc -p .
[96m../../node_modules/@types/gulp-mocha/index.d.ts[0m:[93m10[0m:[93m39[0m - [91merror[0m[90m TS2304: [0mCannot find name 'MochaSetupOptions'.
[7m10[0m declare function mocha(setupOptions?: MochaSetupOptions): NodeJS.ReadWriteStream;
[7m [0m [91m ~~~~~~~~~~~~~~~~~[0m
Found 2 errors.