feat: release version 2.7.0 with endpoint integration and enhancements

[reeshika-h]

• Added new endpoint integration for Contentstack API.
• Introduced a script to refresh the bundled regions.json from the Contentstack artifact registry.
• Enhanced Config class to track if the host has been overridden.
• Implemented Endpoint class to resolve Contentstack API endpoints dynamically.
• Added integration tests for endpoint resolution and service availability.
• Updated Stack class to prioritize explicit host settings over region resolution.
• Updated CHANGELOG.md to reflect the new version and changes.

[github-actions]

🔒 Security Scan Results

ℹ️ Note: Only vulnerabilities with available fixes (upgrades or patches) are counted toward thresholds.

Check Type	Count (with fixes)	Without fixes	Threshold	Result
🔴 Critical Severity	0	0	10	✅ Passed
🟠 High Severity	0	0	25	✅ Passed
🟡 Medium Severity	0	0	500	✅ Passed
🔵 Low Severity	0	0	1000	✅ Passed

⏱️ SLA Breach Summary

✅ No SLA breaches detected. All vulnerabilities are within acceptable time thresholds.

Severity	Breaches (with fixes)	Breaches (no fixes)	SLA Threshold (with/no fixes)	Status
🔴 Critical	0	0	15 / 30 days	✅ Passed
🟠 High	0	0	30 / 120 days	✅ Passed
🟡 Medium	0	0	90 / 365 days	✅ Passed
🔵 Low	0	0	180 / 365 days	✅ Passed

✅ BUILD PASSED - All security checks passed

[github-actions]

Coverage Summary

• 📘 Instruction Coverage: 92%
• 🌿 Branch Coverage: 80%