chore(deps): ⬆️ update actions/cache action to v4 (#119)

This PR contains the following updates:

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

---

### Release Notes

<details>
<summary>actions/cache (actions/cache)</summary>

### [`v4`](https://togithub.com/actions/cache/compare/v3...v4)

[Compare Source](https://togithub.com/actions/cache/compare/v3...v4)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "every weekend" (UTC), Automerge - At
any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xNDEuMCIsInVwZGF0ZWRJblZlciI6IjM3LjE0MS4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

Co-authored-by: Renovate Bot GitHub <[email protected]>

Author: peterjokumsen

.github/actions/install-deps/action.yml

@@ -14,7 +14,7 @@ runs:
 
     - name: Use NX cache if available
       id: nx_cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: tmp/cache
         key: ${{ runner.os }}-nx-${{ hashFiles('**/package-lock.json') }}-${{ hashFiles('libs/**/src/**') }}-${{ hashFiles('apps/**/src/**') }}
@@ -24,7 +24,7 @@ runs:
           ${{ runner.os }}-nx
 
     - name: Use the package manager cache if available
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.npm
         key: ${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}