Wire LicensesTask to Android resources source set

[jamiesanson]

Use Sources#res instead of Sources#resources when wiring LicensesTask.

Fixes #346

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[bogdanzurac]

@rlazo could we make a 0.10.10 release with this, as currently 0.10.8 and 0.10.9 are broken, as mentioned in #346?

[rlazo]

Thanks for the heads up @bogdanzurac we'll include it in the next release train.

Internal b/460850941

[davidmotson]

This release went out last night.