upgrade deps and prepare new alpha

packages/pluggable_transports_proxy/android/src/main/kotlin/eu/weblibre/pluggable_transports_proxy/pigeons/Proxy.g.kt

@@ -1,4 +1,4 @@
-// Autogenerated from Pigeon (v26.0.1), do not edit directly.
+// Autogenerated from Pigeon (v26.1.2), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 @file:Suppress("UNCHECKED_CAST", "ArrayInDataClass")
 
@@ -75,7 +75,7 @@ private open class ProxyPigeonCodec : StandardMessageCodec() {
     when (value) {
       is ProxyType -> {
         stream.write(129)
-        writeValue(stream, value.raw)
+        writeValue(stream, value.raw.toLong())
       }
       else -> super.writeValue(stream, value)
     }