fix: hack fix for contract tests on MacOS

fixes #19802

Contract Tests are failing with missing symbols runtime error on `MacOS` after `golang` version was upgraded to 1.20
A simple hack fix such a case is to use `go 1.19` only to build the status-go library that is used specifically for these integration tests.
Its ugly but it works and unblocks devs from running tests locally.

- execute `make test-contract` on MacOS and it should not fail.

not needed since this impacts only the integration tests.

- macOS

status: ready

modules/react-native-status/nodejs/status.cpp

@@ -1,5 +1,9 @@
-// DO NOT EDIT: code is autogenerated by go2nodebinding from Go code.
-// https://github.com/divan/go2nodebinding
+// This code has pieces that were autogenerated but is now managed manually
+// Here lies the node bindings used for integration tests
+// These are basically C calls to exported status-go functions
+// Along 1 additional Poll function to get signals to work
+// function names registered here in init() are used in various places
+// ref -> status-mobile/src/tests/test_utils.cljs
 
 #include <node.h>
 #include <string>

nix/status-go/library/default.nix

@@ -1,8 +1,9 @@
-{ buildGoPackage
-# object with source attributes
-, meta, source}:
-
-buildGoPackage {
+{ stdenv, meta, source, buildGo119Package, buildGo120Package }:
+let
+  # https://github.com/status-im/status-mobile/issues/19802
+  # only for Darwin to fix Integration Tests failing with missing symbols on go 1.20
+  buildGoPackageIntegrationTest = if stdenv.isDarwin then buildGo119Package else buildGo120Package;
+in buildGoPackageIntegrationTest {
   pname = source.repo;
   version = "${source.cleanVersion}-${source.shortRev}";