fix traefik level template: capture first digit, avoid printf

argocd/apps/alloy.yaml

@@ -91,12 +91,12 @@ spec:
                   selector = "{service=\"traefik\"}"
 
                   stage.regex {
-                    expression = `\"\w+ .+ HTTP/[\d.]+\" (?P<status_code>[0-9]{3}) `
+                    expression = `\"\w+ .+ HTTP/[\d.]+\" (?P<status_class>[0-9])[0-9]{2} `
                   }
 
                   stage.template {
                     source   = "level"
-                    template = `{{ if eq (printf "%.1s" .status_code) "5" }}error{{ else if eq (printf "%.1s" .status_code) "4" }}warn{{ else }}info{{ end }}`
+                    template = `{{ if eq .status_class "5" }}error{{ else if eq .status_class "4" }}warn{{ else }}info{{ end }}`
                   }
 
                   stage.labels {