chore(deps): update go toolchain directive to v1.27.1

Author: renovate[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/nethesis/falconieri
 
 go 1.25.0
 
-toolchain go1.26.7
+toolchain go1.27.1
 
 require (
 	github.com/divan/gorilla-xmlrpc v0.0.0-20190926132722-f0686da74fda