starknet_transaction_prover: disable tests blocking block hash change at the request of Avi Cohen

[sirandreww-starkware]

No description provided.

[reviewable-StarkWare]

This change is 

[sirandreww-starkware]

• starknet_transaction_prover: disable tests blocking block hash change at the request of Avi Cohen #13934 👈 (View in Graphite)
• apollo_storage: add fee_proposal_fri migrator and bump blocks version to 6.1 #13936 : 2 other dependent PRs (#13814 , #13854 )
• apollo_protobuf: add fee_proposal_fri to sync proto SignedBlockHeader #13957
• starknet_api: add fee_proposal_fri to BlockHeaderWithoutHash #13822
• apollo_protobuf: add fee_proposal_fri to ProposalInit #13812 : 2 other dependent PRs (#13811 , #13935 )
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[cursor]

PR Summary

Low Risk
Only affects test compilation/execution by disabling two integration tests; no production logic changes.

Overview
Disables the Sepolia VirtualSnosProver end-to-end integration tests for balanceOf and STRK transfer by gating them behind #[cfg(any())] and adding a TODO to re-enable later, effectively removing them from the test suite even when running --ignored.

^{Reviewed by Cursor Bugbot for commit 682867f. Bugbot is set up for automated code reviews on this repo. Configure here.}

[sirandreww-starkware]

No longer needed: the F2F decision is that fee_proposal will not be an input to the block hash, so the prover tests don't need to be disabled.