Update dependency go to v1.23.6 (#902)

| datasource     | package | from   | to     |
| -------------- | ------- | ------ | ------ |
| golang-version | go      | 1.23.5 | 1.23.6 |

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

Author: renovate[bot]

go.mod

@@ -1,6 +1,6 @@
 module github.com/nginx/nginx-asg-sync
 
-go 1.23.5
+go 1.23.6
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.1