rounding v2 dryrun

[zjma]

Description

Run rounding v2 impl along with v1 but ignore the v2 result.
The intention is to see v2 result on mainnet and fully apply #15071 if no issue.

How Has This Been Tested?

v2 impl is tested in #15071

Key Areas to Review

v2 impl should be as efficient as v1 and never aborts.

Type of Change

• New feature

Which Components or Systems Does This Change Impact?

• Validator Node

Checklist

• I have read and followed the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I identified and added all stakeholders and component owners affected by this change as reviewers
• I tested both happy and unhappy path of the functionality
• I have made corresponding changes to the documentation

[trunk-io]

⏱️ 55m total CI duration on this PR

Job	Cumulative Duration	Recent Runs
rust-move-tests	14m	🟩
rust-move-tests	13m	🟩
rust-move-tests	13m	🟩
rust-cargo-deny	7m	🟥 🟩 🟩
check-dynamic-deps	4m	🟩 🟩 🟩
general-lints	1m	🟩 🟩 🟩
semgrep/ci	1m	🟩 🟩 🟩
file_change_determinator	38s	🟩 🟩 🟩
permission-check	8s	🟩 🟩 🟩
permission-check	7s	🟩 🟩 🟩

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