chore(deps): update dependency go (#1600)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Setup go
         uses: actions/setup-go@v6.2.0
         with:
-          go-version: 1.25.6
+          go-version: 1.25.7
 
       - name: Build
         run: go build -v ./...

go.mod

@@ -2,7 +2,7 @@ module github.com/fclairamb/ftpserver
 
 go 1.25.0
 
-toolchain go1.25.7
+toolchain go1.26.0
 
 require (
 	cloud.google.com/go/storage v1.60.0