Fix grep error in alpine linux

[jeevithakannan2]

Type of Change

• Bug fix

Description

This can be resolved without changing anything by running apk add --no-cache grep. But we cannot ask the user to do so while we can solve this ourselves.

Testing

Tested without any issues in alpine VM

Issues / other PRs related

• Resolves Cannot download linutil dev branch in alpine #978

Checklist

• My code adheres to the coding and style guidelines of the project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no errors/warnings/merge conflicts.

[jeevithakannan2]

@ChrisTitusTech The CI is failing because of formatting. Currently I cannot format the script sorry for inconvenience.