chore(deps): update dependency bazel_skylib to v1.6.0 (#165)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [bazel_skylib](https://togithub.com/bazelbuild/bazel-skylib) |
http_archive | minor | `1.5.0` -> `1.6.0` |

---

### Release Notes

<details>
<summary>bazelbuild/bazel-skylib (bazel_skylib)</summary>

###
[`v1.6.0`](https://togithub.com/bazelbuild/bazel-skylib/releases/tag/1.6.0)

[Compare
Source](https://togithub.com/bazelbuild/bazel-skylib/compare/1.5.0...1.6.0)

Release 1.6.0

##### What's Changed

- Add helper functions for module extensions as `modules` by
[@&#8203;fmeum](https://togithub.com/fmeum) in
[bazelbuild/bazel-skylib#457
- Make `out` on `native_binary` optional by
[@&#8203;tpudlik](https://togithub.com/tpudlik) in
[bazelbuild/bazel-skylib#474
- Remove outdated rules_cc dependency
[@&#8203;cpsauer](https://togithub.com/cpsauer) in
[bazelbuild/bazel-skylib#476
- Add toolchains argument to unittests.make by
[@&#8203;jylinv0](https://togithub.com/jylinv0) in
[bazelbuild/bazel-skylib#483
- Allow `bzl_library` to depend on non-`bzl_library` targets by
[@&#8203;Wyverald](https://togithub.com/Wyverald) in
[bazelbuild/bazel-skylib#495

##### New Contributors

- [@&#8203;jylinv0](https://togithub.com/jylinv0) made their first
contribution in
[bazelbuild/bazel-skylib#483
- [@&#8203;tpudlik](https://togithub.com/tpudlik) made their first
contribution in
[bazelbuild/bazel-skylib#474

**Full Changelog**:
bazelbuild/bazel-skylib@1.5.0...1.6.0

##### MODULE.bazel setup

```starlark
bazel_dep(name = "bazel_skylib", version = "1.6.0")

##### If the Gazelle plugin is needed:
bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.6.0", dev_dependency = True)
```

##### WORKSPACE setup

```starlark
load("@&#8203;bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "bazel_skylib",
    sha256 = "41449d7c7372d2e270e8504dfab09ee974325b0b40fdd98172c7fbe257b8bcc9"
    urls = [
        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-1.6.0.tar.gz",
        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-1.6.0.tar.gz",
    ],
)

load("@&#8203;bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")

bazel_skylib_workspace()
```

***Additional WORKSPACE setup for the Gazelle plugin***

```starlark
http_archive(
    name = "bazel_skylib_gazelle_plugin",
    sha256 = "8700f9204f3b0a32851cdf56c63b8d8d4fcf93b96707c590d1de8d84cf07ee7d",
    urls = [
        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-gazelle-plugin-1.6.0.tar.gz",
        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-gazelle-plugin-1.6.0.tar.gz",
    ],
)

load("@&#8203;bazel_skylib_gazelle_plugin//:workspace.bzl", "bazel_skylib_gazelle_plugin_workspace")

bazel_skylib_gazelle_plugin_workspace()

load("@&#8203;bazel_skylib_gazelle_plugin//:setup.bzl", "bazel_skylib_gazelle_plugin_setup")

bazel_skylib_gazelle_plugin_setup()
```

**Using the rules**

See [the
source](https://togithub.com/bazelbuild/bazel-skylib/tree/1.6.0).

</details>

---

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swifttidy/deps.bzl

@@ -9,10 +9,10 @@ def swifttidy_rules_dependencies():
         http_archive,
         name = "bazel_skylib",
         urls = [
-            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
-            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-1.6.0.tar.gz",
+            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.6.0/bazel-skylib-1.6.0.tar.gz",
         ],
-        sha256 = "cd55a062e763b9349921f0f5db8c3933288dc8ba4f76dd9416aac68acee3cb94",
+        sha256 = "41449d7c7372d2e270e8504dfab09ee974325b0b40fdd98172c7fbe257b8bcc9",
     )
 
     maybe(