NGINX Configuration Changes and OWASP CloudMetadata False Positive

[awsnand]

Issue #, if available:

Description of changes:

• NGINX Configuration Overrides
• Ignore OWASP CloudMetadata False Positive on initial build. More details here: https://groups.google.com/g/zaproxy-users/c/RjzGA22YZF4/m/tOowiDIkBQAJ

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