Fix value of v in contract result APIs for legacy Ethereum transactions

[steven-sheehy]

Description:

Fix the return value of v in the contract results APIs to use the actual signature_v field instead of recovery_id for legacy Ethereum transactions.

Related issue(s):

Fixes #8597

Notes for reviewer:

Checklist

• [ ] Documented (Code comments, README, etc.)
• [x] Tested (unit, integration, etc.)

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.40%. Comparing base (035e078) to head (1850a64). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #8632 +/- ## ============================================ + Coverage 92.39% 92.40% +0.01% Complexity 7489 7489 ============================================ Files 914 914 Lines 29856 29860 +4 Branches 3641 3644 +3 ============================================ + Hits 27585 27592 +7 + Misses 1445 1442 -3 Partials 826 826 ```

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