fix(anta.tests): VerifyEVPNType2Route test fails for locally originated MAC/IP addresses

[vitthalmagadum]

Description

Updated the test to at least one EVPN route has at least one active/valid path across all learned routes from all RDs combined

Fixes #950

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have run pre-commit for code linting and typing (pre-commit run)
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes (tox -e testenv)

[codspeed-hq]

CodSpeed Performance Report

Merging #969 will not alter performance

_{Comparing vitthalmagadum:fix/bgp_type_2 (eb6005f) with main (c119777)}

Summary

✅ 8 untouched benchmarks

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[carl-baillargeon]

LGTM