chore: update go.mod and CI to Go 1.26

Author: unknwon

.github/workflows/go.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.25.x
+          go-version: 1.26.x
       - name: Check Go module tidiness
         shell: bash
         run: |
@@ -51,7 +51,7 @@ jobs:
     name: Test
     strategy:
       matrix:
-        go-version: [ 1.25.x ]
+        go-version: [ 1.26.x ]
         platform: [ ubuntu-latest, macos-latest, windows-latest ]
     runs-on: ${{ matrix.platform }}
     steps:

go.mod

@@ -1,6 +1,6 @@
 module github.com/gogs/git-module/v2
 
-go 1.24.0
+go 1.26.0
 
 require github.com/stretchr/testify v1.11.1