Fix exposed credentials in Observo pipeline templates

- Masked AWS IAM role ARN with placeholder format
- Replaced exposed external ID with asterisks
- Masked Cisco Duo API credentials (host, integration key, secret key)
- Replaced Netskope Base64 API token with asterisks
- Masked Okta API token
- Replaced ProofPoint user ID with asterisks

These changes ensure no sensitive authentication data is exposed
in the pipeline template files while maintaining usability.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: nate-smalls-s1