Render SAML attributes_map_dir config value to string instead of an object

[catshapednoodles]

Description

Fixes #11763

Test results

My workspace is not properly setup to run Python tests unfortunately

Checklist

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[dryrunsecurity]

DryRun Security Summary

The PR safely modifies the SAML2 configuration by converting a Path object to a string for the attribute map directory.

Expand for full summary

PR updates the SAML2 configuration in settings.dist.py by converting a Path object to a string for attribute map directory. No security vulnerabilities were found in this change.

Code Analysis

We ran 9 analyzers against 1 file and 0 analyzers had findings. 9 analyzers had no findings.

View PR in the DryRun Dashboard.