internal/rosa: populate Anitya project ids

This enables release monitoring for all applicable projects.

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

internal/rosa/pkg-config.go

@@ -26,5 +26,7 @@ func init() {
 		Name:        "pkg-config",
 		Description: "a helper tool used when compiling applications and libraries",
 		Website:     "https://pkgconfig.freedesktop.org/",
+
+		ID: 3649,
 	}
 }