[LB] Updates protocol support

[angelampcosta]

Summary

Updates protocol support.

Documentation checklist

• The documentation style guide has been adhered to.

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PR Change Summary

Updated protocol support to include additional connectivity options for monitoring endpoints.

• Expanded ICMP Ping support to include private endpoints.
• Added UDP-ICMP support for private endpoints.

Modified Files

• src/content/docs/load-balancing/monitors/index.mdx

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[github-actions]

Preview URL: https://15f6218c.preview.developers.cloudflare.com
Preview Branch URL: https://angela-update-protocol-support.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/load-balancing/monitors/	https://angela-update-protocol-support.preview.developers.cloudflare.com/load-balancing/monitors/