ci: upgrade mcp-conformance-action to v2.2.0

v2.2.0 adds automatic HTTP server lifecycle management and
improved documentation for transport configuration.

Author: SamMorrowDrums

.github/workflows/conformance.yml

@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
 
       - name: Run MCP Conformance Test
-        uses: SamMorrowDrums/mcp-conformance-action@616529364beb374fa4da7f81f26932fa5a70ce97 # v2.0.2
+        uses: SamMorrowDrums/mcp-conformance-action@25cdd5c265f1ac00ff4d9098b344864932167054 # v2.2.0
         with:
           setup_go: "true"
           install_command: go mod download