Bump rules_typescript to 0.6.2.
Bump rules_typescript to 0.6.2.

This fixes a compilation issue with tsetse caused by a floating version
dependency.

See also https://github.com/bazelbuild/rules_typescript/issues/117.

angular/tsickle,angular/tsickle,alexeagle/tsickle,drjanitor/tsickle,drjanitor/tsickle,drjanitor/tsickle,alexeagle/tsickle,drjanitor/tsickle,alexeagle/tsickle