Update worker slice gateway pod spec with openvpn server container resources spec

### 📜 Description

Update worker slice gateway pod spec with openvpn server container resources spec - missing resource spec

### 👟 Reproduction steps

Create slice with 2 clusters

### 👍 Expected behavior

Container spec should have a default resource spec

### 👎 Actual Behavior

Missing container resource spec

### 🐚 Relevant log output

_No response_

### Version

_No response_

### 🖥️ What operating system are you seeing the problem on?

Linux

### ✅ Proposed Solution

_No response_

### 👀 Have you spent some time to check if this issue has been raised before?

- [X] I checked and didn't find any similar issue

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct

Start by locating the worker slice gateway pod specification and the OpenVPN server container definition, then inspect how resource specifications are set for the other containers. Reproduce the issue by creating a slice with two clusters and verify that the OpenVPN server container has a default resource specification.

Written by the indexing model from the issue text.