Rework warp sync patch to enable warp sync on testnet.

[shamil-gadelshin]

Description

This PR changes our patched warp sync version from the custom target header provider to the regular warp proof (NetworkProvider). We restore the default warp sync behavior and change the grandpa patch to accept configuration both for a changed initial set ID and block hashes to skip justifications.

New grandpa patch: https://github.com/opentensor/grandpa/tree/update-polkadot-stable2412-6-v2

node-subtensor --chain ./subtensor/chainspecs/raw_spec_finney.json --base-path <BASE_PATH> --sync=warp --port 30333 --no-mdns --database paritydb --db-cache 4096 --trie-cache-size 2048

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Other (please describe):

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have run cargo fmt and cargo clippy to ensure my code is formatted and linted correctly
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules