Update dependency go to 1.26 (#108)

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

Author: renovate[bot]

.github/workflows/gopls_update_check.yaml

@@ -30,7 +30,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-go@v6
         with:
-          go-version: "1.25"
+          go-version: "1.26"
           check-latest: true
           cache: true
       - name: Install GOPLS