Test Go unstable version 1.26rc2

See the draft release notes: https://tip.golang.org/doc/go1.26.

Author: arnested

go.mod

@@ -1,6 +1,6 @@
 module ldddns.arnested.dk
 
-go 1.25.6
+go 1.26rc2
 
 require (
 	github.com/Microsoft/go-winio v0.6.1 // indirect