helm executable extracted to temporary directory is globally writable.

[matteriben]

Bill of Materials or CLI Version

No response

Execution Environment

JUnit Extensions

Slf4j Logging Implementation

None

To Reproduce

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

N/A

Additional Context

No response