Update module go:github.com/grafana/oats to v0.4.1

Author: renovate[bot]

mise.toml

@@ -1,6 +1,6 @@
 [tools]
 "go:github.com/gohugoio/hugo" = "v0.149.0"
-"go:github.com/grafana/oats" = "0.4.0"
+"go:github.com/grafana/oats" = "0.4.1"
 java = "temurin-21.0.8+9.0.LTS"
 lychee = "0.20.1"
 protoc = "32.0"