fix(typescript): don't include _valid_options marker file in outs
fix(typescript): don't include _valid_options marker file in outs

Tested by building //packages/angular:npm_package and don't get an extra .d.ts file in the package.
Also tested the negative case by making an invalid option and check that it's still reported.

Fixes #2078

alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,alexeagle/rules_nodejs,alexeagle/rules_nodejs,alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs