feat(helm): update tailscale-operator ( 1.76.6 → 1.78.3 ) (#6000)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [tailscale-operator](https://redirect.github.com/tailscale/tailscale)
| minor | `1.76.6` -> `1.78.3` |

---

### Release Notes

<details>
<summary>tailscale/tailscale (tailscale-operator)</summary>

###
[`v1.78.3`](https://redirect.github.com/tailscale/tailscale/compare/v1.78.1...v1.78.3)

[Compare
Source](https://redirect.github.com/tailscale/tailscale/compare/v1.78.1...v1.78.3)

###
[`v1.78.1`](https://redirect.github.com/tailscale/tailscale/releases/tag/v1.78.1)

[Compare
Source](https://redirect.github.com/tailscale/tailscale/compare/v1.76.6...v1.78.1)

Please refer to the changelog available at
[https://tailscale.com/changelog](https://tailscale.com/changelog#2024-12-05).

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
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

---

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

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS42MC4wIiwidXBkYXRlZEluVmVyIjoiMzkuNjIuNiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsicmVub3ZhdGUvaGVsbSIsInR5cGUvbWlub3IiXX0=-->

Co-authored-by: lumiere-bot[bot] <98047013+lumiere-bot[bot]@users.noreply.github.com>

kubernetes/kyak/apps/tailscale/tailscale/app/helmrelease.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: tailscale-operator
-      version: 1.76.6
+      version: 1.78.3
       sourceRef:
         kind: HelmRepository
         name: tailscale