test: run tests across zkVM using mocked guest programs

[keroro520]

Run Example:

RUST_LOG=info cargo test --release --features in-memory,risc0,test-mock-guest test_v2_mainnet_prove_risc0 -- --nocapture

[smtmfft]

LGTM.
will you also add sp1 mock? or you think r0 mock is enough for test purpose?

One more thing is update corresponding scope to ci.yml

[smtmfft]

maybe better to use feature to separate build.
please also check if the image id output in compile log is clear or not as we need give that id to client to config the contract.

[keroro520]

LGTM. will you also add sp1 mock? or you think r0 mock is enough for test purpose?

One more thing is update corresponding scope to ci.yml

Thanks for your review.
While I transfer it to draft status because I come up with another idea, which may make test more simply.