chore(deps): update dependency bazel_skylib to v1.6.0 (#60)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| bazel_skylib | bazel_dep | minor | `1.5.0` -> `1.6.0` |

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MODULE.bazel

@@ -3,5 +3,5 @@ module(
     version = "0.0.0",
 )
 
-bazel_dep(name = "bazel_skylib", version = "1.5.0")
+bazel_dep(name = "bazel_skylib", version = "1.6.0")
 bazel_dep(name = "cgrindel_bazel_starlib", version = "0.19.0")