chore: add v3 matching rules test

[JP-Ellis]

📝 Summary

Implement compatibility suites around matching rules.

🚨 Breaking Changes

🔥 Motivation

🔨 Test Plan

🔗 Related issues/PRs

• Fixes: v3/matching_rules.feature #1179
• Fixes: v4/matching_rules.feature #1180

[Copilot]

Pull Request Overview

This PR implements compatibility test suites for both V3 and V4 matching rules to ensure proper compatibility across Pact specifications. The tests validate various matcher types including array contains, each value, semver, status code, and other matching rules with both positive and negative test cases.

Key changes:

• Adds comprehensive V3 matching rules test suite with support for boolean, content type, date/time, values, and other matchers
• Implements V4 matching rules test suite including newer matchers like ArrayContains, EachValue, and semver matchers
• Provides shared test infrastructure for request/response comparison and mismatch validation

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
tests/compatibility_suite/test_v4_matching_rules.py	Complete V4 matching rules test implementation with fixtures, scenario definitions, and step implementations
tests/compatibility_suite/test_v3_matching_rules.py	Complete V3 matching rules test implementation with similar structure but V3-specific matcher support

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