chore(deps): update actions/cache action to v5 (#343)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/cache](https://redirect.github.com/actions/cache) | action |
major | `v4` -> `v5` |

---

### Release Notes

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

### [`v5`](https://redirect.github.com/actions/cache/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/cache/compare/v4...v5)

</details>

---

### Configuration

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Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, 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

---

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.github/workflows/versioning-merge.yml

@@ -31,7 +31,7 @@ jobs:
 
     - name: Cache Helm binary
       id: cache-helm
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: /usr/local/bin/helm
         key: helm-v3.19.0-linux-amd64

.github/workflows/versioning.yml

@@ -23,7 +23,7 @@ jobs:
 
         - name: Cache Helm binary
           id: cache-helm
-          uses: actions/cache@v4
+          uses: actions/cache@v5
           with:
             path: /usr/local/bin/helm
             key: helm-v3.19.0-linux-amd64