Update Go version from 1.21 to 1.23

Co-authored-by: ziflex <[email protected]>

Author: Copilot

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.21
+          go-version: ^1.23
         id: go
 
       - name: Set up linter

go.mod

@@ -1,6 +1,6 @@
 module github.com/go-waitfor/waitfor-postgres
 
-go 1.21
+go 1.23
 
 require (
 	github.com/go-waitfor/waitfor v1.0.0