fix(build): add default condition to platform select() (#11310)

(cherry picked from commit d5ef304)

Co-authored-by: Michael Martin <[email protected]>

Author: team-gateway-bot

build/openresty/BUILD.openresty.bazel

@@ -239,6 +239,7 @@ CONFIGURE_OPTIONS = [
         # https://github.com/Kong/ngx_wasm_module/commit/e70a19f53e1dda99d016c5cfa393652720959afd
         "--with-ld-opt=\"-Wl,--allow-multiple-definition\"",
     ],
+    "//conditions:default": [],
 }) + select({
     "@kong//:wasmx_flag": [
         "--with-cc-opt=\"-DNGX_WASM_HOST_PROPERTY_NAMESPACE=kong\"",