Filter SAMLResponse from logs

What does this MR do and why?

This merge request updates the code to redact sensitive information from SAML responses. It does this by replacing specific XML attributes with the string "REDACTED". The code also handles cases where the SAML response is base64 encoded. Additionally, it adds a new filter to the application's parameter filtering configuration to apply this redaction to incoming SAML responses.

Related to #435308 (closed)

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.