feat: upgrade wasm-nginx-module to 0.4.0 (#158)

Author: spacewander

build-apisix-base.sh

@@ -14,7 +14,7 @@ else
     ngx_multi_upstream_module_ver="-b 1.0.1"
     mod_dubbo_ver="-b 1.0.1"
     apisix_nginx_module_ver="-b 1.5.0"
-    wasm_nginx_module_ver="-b 0.3.0"
+    wasm_nginx_module_ver="-b 0.4.0"
     lua_var_nginx_module_ver="-b v0.5.2"
     debug_args=${debug_args:-}
     OR_PREFIX=${OR_PREFIX:="/usr/local/openresty"}