[e2e] update tests to use gitkube cli

[shahidhk]

Tests can use gitkube cli to install and uninstall as well as manage remotes.

[ssiddhantsharma]

@shahidhk I am taking this up! Can you explain the issue in more detail

[tirumaraiselvan]

@ssiddhantsharma Yes!

Basically, currently gitkube is installed via kubernetes manifest files. Same for remotes. We have a gitkube cli tool to do the same work.

We should have tests which do the exact same thing currently with gitkube cli as well. Basically a copy of e2e/test.bash with gitkube cli commands instead of kubectl commands.

[Kacppian]

Is this still open?