Bump Go version for GH actions to 1.23

Author: alexedwards

.github/workflows/go.yml

@@ -57,7 +57,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.20'
+        go-version: '1.23'
 
     - name: Test
       run: go test -race -v ./...