Update mcp requirement from >=1.0.0 to >=1.27.0 in /AskAgent/python

Updates the requirements on [mcp](https://github.com/modelcontextprotocol/python-sdk) to permit the latest version.
- [Changelog](https://github.com/modelcontextprotocol/python-sdk/blob/main/RELEASE.md)
- [Commits](modelcontextprotocol/python-sdk@v1.0.0...v1.27.0)

---
updated-dependencies:
- dependency-name: mcp
  dependency-version: 1.27.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

AskAgent/python/requirements.txt

@@ -3,7 +3,7 @@ azure-search-documents>=11.4.0
 azure-identity>=1.15.0
 chardet>=5.2.0
 jsonschema>=4.19.1
-mcp>=1.0.0
+mcp>=1.27.0
 marshmallow<5.0.0
 packaging>=16.8,<27
 protobuf>=3.20,<8