fix: upgrade fastmcp to 3.2.0 to fix SSRF vulnerability (CVE)

[Jkavia]

Security Fix Details

Package: fastmcp

Vulnerable Version: < 3.2.0

Fixed Version: 3.2.0

Vulnerability: Authenticated SSRF via path traversal in OpenAPIProvider

Impact: Attackers could escape API prefix and access arbitrary backend endpoints

JIRA: https://datastax.jira.com/browse/LE-771
Depbotscan:
https://github.com/langflow-ai/langflow/security/dependabot/691
https://github.com/langflow-ai/langflow/security/dependabot/690

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 50.09%. Comparing base (8d01ba4) to head (3740449).
⚠️ Report is 2 commits behind head on release-1.9.0.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-1.9.0   #12516      +/-   ##
=================================================
+ Coverage          50.05%   50.09%   +0.03%     
=================================================
  Files               1930     1932       +2     
  Lines             172591   172025     -566     
  Branches           25234    24158    -1076     
=================================================
- Hits               86398    86175     -223     
+ Misses             85147    84804     -343     
  Partials            1046     1046              

Flag	Coverage Δ
backend	55.86% <ø> (+0.04%)	⬆️
frontend	49.00% <ø> (+0.03%)	⬆️
lfx	49.06% <ø> (ø)

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see 249 files with indirect coverage changes

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[github-actions]

Frontend Unit Test Coverage Report

Coverage Summary

Lines	Statements	Branches	Functions
	29.69% (31319/105481)	63.69% (3976/6242)	31.04% (731/2355)

Unit Test Results

Tests	Skipped	Failures	Errors	Time
3104	0 💤	0 ❌	0 🔥	4m 59s ⏱️