fix: require Python >=3.11, pin adif-mcp>=0.9.6 (v0.2.2)

- Bump requires-python from >=3.10 to >=3.11 (matches adif-mcp)
- Pin adif-mcp>=0.9.6 (keyrings.alt dep, case normalization)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: KI7MT

pyproject.toml

@@ -1,13 +1,13 @@
 [project]
 name = "qrz-mcp"
-version = "0.2.1"
+version = "0.2.2"
 description = "MCP server for QRZ.com — callsign lookup, DXCC resolution, logbook queries"
 readme = "README.md"
 license = {text = "GPL-3.0-or-later"}
 authors = [{name = "Greg Beam, KI7MT"}]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
-    "adif-mcp>=0.6.2",
+    "adif-mcp>=0.9.6",
     "fastmcp>=3.0",
 ]
 keywords = [