fix: add missing bazel_skylib dep

Author: zaucy

MODULE.bazel

@@ -8,3 +8,4 @@ bazel_dep(name = "ecsact_runtime", version = "0.5.4")
 bazel_dep(name = "ecsact_codegen", version = "0.1.3")
 bazel_dep(name = "rules_cc", version = "0.0.9")
 bazel_dep(name = "ecsact_lang_cpp", version = "0.3.1")
+bazel_dep(name = "bazel_skylib", version = "1.4.2")