vala: Better fix for #234 supporting older vala

Closes #237

libsoup/Soup-2.4-custom.vala

@@ -6,8 +6,10 @@ namespace Soup {
 		public Buffer.subbuffer (Soup.Buffer parent, size_t offset, size_t length);
 	}
 
+#if !VALA_0_54
 	[Version (deprecated_since = "vala-0.22", replacement = "Status.get_phrase")]
 	public static unowned string status_get_phrase (uint status_code);
 	[Version (deprecated_since = "vala-0.22", replacement = "Status.proxify")]
 	public static uint status_proxify (uint status_code);
+#endif
 }

libsoup/Soup-2.4.metadata

@@ -16,10 +16,6 @@ Requester deprecated_since="2.42" replacement="Session"
 KnownStatusCode deprecated_since="2.44" replacement="Status"
 ProxyResolver deprecated_since="2.28" replacement="ProxyURIResolver"
 
-// Defined in Soup-2.4-custom.vala, see https://gitlab.gnome.org/GNOME/vala/-/commit/f3a8f1a6444ae0ab59ec4bd6496a7c1025785ad4
-status_get_phrase skip
-status_proxify skip
-
 // Report upstream
 add_* skip=false type="unowned GLib.TimeoutSource"
 Auth