helm executable extracted to temporary directory is globally writable.

### Bill of Materials or CLI Version

_No response_

### Execution Environment

JUnit Extensions

### Slf4j Logging Implementation

None

### To Reproduce

```markdown
Use helm client, inspect temporary directory with name such as `HelmSoftwareLoader4512790602684642253` containing globally writable helm executable.
```

### Describe the bug

`helm` executable is extracted as globally writable file.

### Describe the expected behavior

Extracted executable does not need to be writable, especially not be group or world.

### Whole JUnit/CLI Logs

```shell
N/A
```

### Additional Context

_No response_