Bump golang from 1.24.3 to 1.25.1.

Binary releases depend on GitHub Actions actions/setup-go
which uses the toolchain version from go.mod.

Author: dossy

go.mod

@@ -2,7 +2,7 @@ module github.com/amacneil/dbmate/v2
 
 go 1.23.0
 
-toolchain go1.24.3
+toolchain go1.25.1
 
 require (
 	cloud.google.com/go/bigquery v1.69.0