bump(zcash_script): Bump zcash script v0.1.15 and restore Windows support

[oxarbitrage]

Motivation

Updates zcash_script to 0.1.15 and zcash_primitives to 0.13.0.

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Solution

Update zcash_script, restore windows support to CI and disable tests were needed.

Testing

Windows CI and @arya2 made some local checks in windows.

Review

Anyone can review.

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Follow Up Work

[arya2]

We may be able to re-enable the rejection_restores_internal_state_genesis() test.

The logs suggest that the rpc_server_spawn_single_thread test is redundant on Windows, so I think it's fine to skip it, or to skip the multi-thread version of the test, either should work.

[arya2]

Looks good