internal/rosa: populate Anitya project ids

This enables release monitoring for all applicable projects.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/kernel.go

@@ -148,6 +148,8 @@ func init() {
 		Name:        "kernel",
 		Description: "the generic Rosa OS linux kernel",
 		Website:     "https://kernel.org/",
+
+		ID: 375621,
 	}
 }