Fix GN issue with incorrect task outputs

This was preventing the build from reaching steady state when building
SkSL tests.

Change-Id: If891f6858a8a0935fd100092e71115fd44665402
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/347052
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed