chore(deps): update actions/setup-node action to v4 (#111)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/setup-node](https://togithub.com/actions/setup-node) | action
| major | `v3.8.1` -> `v4.0.1` |

---

### Release Notes

<details>
<summary>actions/setup-node (actions/setup-node)</summary>

###
[`v4.0.1`](https://togithub.com/actions/setup-node/releases/tag/v4.0.1)

[Compare
Source](https://togithub.com/actions/setup-node/compare/v4.0.0...v4.0.1)

##### What's Changed

- Ignore engines in Yarn 1 e2e-cache tests by
[@&#8203;trivikr](https://togithub.com/trivikr) in
[actions/setup-node#882
- Update setup-node references in the README.md file to setup-node@v4 by
[@&#8203;jwetzell](https://togithub.com/jwetzell) in
[actions/setup-node#884
- Update reusable workflows to use Node.js v20 by
[@&#8203;MaksimZhukov](https://togithub.com/MaksimZhukov) in
[actions/setup-node#889
- Add fix for cache to resolve slow post action step by
[@&#8203;aparnajyothi-y](https://togithub.com/aparnajyothi-y) in
[actions/setup-node#917
- Fix README.md by [@&#8203;takayamaki](https://togithub.com/takayamaki)
in
[actions/setup-node#898
- Add `package.json` to `node-version-file` list of examples. by
[@&#8203;TWiStErRob](https://togithub.com/TWiStErRob) in
[actions/setup-node#879
- Fix node-version-file interprets entire package.json as a version by
[@&#8203;NullVoxPopuli](https://togithub.com/NullVoxPopuli) in
[actions/setup-node#865

##### New Contributors

- [@&#8203;trivikr](https://togithub.com/trivikr) made their first
contribution in
[actions/setup-node#882
- [@&#8203;jwetzell](https://togithub.com/jwetzell) made their first
contribution in
[actions/setup-node#884
- [@&#8203;aparnajyothi-y](https://togithub.com/aparnajyothi-y) made
their first contribution in
[actions/setup-node#917
- [@&#8203;takayamaki](https://togithub.com/takayamaki) made their first
contribution in
[actions/setup-node#898
- [@&#8203;TWiStErRob](https://togithub.com/TWiStErRob) made their first
contribution in
[actions/setup-node#879
- [@&#8203;NullVoxPopuli](https://togithub.com/NullVoxPopuli) made their
first contribution in
[actions/setup-node#865

**Full Changelog**:
actions/setup-node@v4...v4.0.1

###
[`v4.0.0`](https://togithub.com/actions/setup-node/releases/tag/v4.0.0)

[Compare
Source](https://togithub.com/actions/setup-node/compare/v3.8.2...v4.0.0)

##### What's Changed

In scope of this release we changed version of node runtime for action
from node16 to node20 and updated dependencies in
[actions/setup-node#866

Besides, release contains such changes as:

- Upgrade actions/checkout to v4 by
[@&#8203;gmembre-zenika](https://togithub.com/gmembre-zenika) in
[actions/setup-node#868
- Update actions/checkout for documentation and yaml by
[@&#8203;dmitry-shibanov](https://togithub.com/dmitry-shibanov) in
[actions/setup-node#876

##### New Contributors

- [@&#8203;gmembre-zenika](https://togithub.com/gmembre-zenika) made
their first contribution in
[actions/setup-node#868

**Full Changelog**:
actions/setup-node@v3...v4.0.0

###
[`v3.8.2`](https://togithub.com/actions/setup-node/releases/tag/v3.8.2)

[Compare
Source](https://togithub.com/actions/setup-node/compare/v3.8.1...v3.8.2)

##### What's Changed

- Update semver by
[@&#8203;dmitry-shibanov](https://togithub.com/dmitry-shibanov) in
[actions/setup-node#861
- Update temp directory creation by
[@&#8203;nikolai-laevskii](https://togithub.com/nikolai-laevskii) in
[actions/setup-node#859
- Bump [@&#8203;babel/traverse](https://togithub.com/babel/traverse)
from 7.15.4 to 7.23.2 by
[@&#8203;dependabot](https://togithub.com/dependabot) in
[actions/setup-node#870
- Add notice about binaries not being updated yet by
[@&#8203;nikolai-laevskii](https://togithub.com/nikolai-laevskii) in
[actions/setup-node#872
- Update toolkit cache and core by
[@&#8203;dmitry-shibanov](https://togithub.com/dmitry-shibanov) and
[@&#8203;seongwon-privatenote](https://togithub.com/seongwon-privatenote)
in
[actions/setup-node#875

**Full Changelog**:
actions/setup-node@v3...v3.8.2

</details>

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.github/workflows/pr-checks.yml

@@ -59,7 +59,7 @@ jobs:
 
       # Use ajv to validate schema
       - name: Setup node
-        uses: actions/setup-node@v3.8.1
+        uses: actions/setup-node@v4.0.1
 
       - name: Validate schema 
         run: make ajv-validate-flagd-schema