chore: outputs which kube-context is being used for skaffold dev

[riyamittal009]

Fixes: #6861

Description
Outputs kube context on skaffold dev, which originally could only be seen with -v info flag following the command.

User facing changes
First line of output of skaffold dev is "Using kubectl context: " + kube context name.
Before:

After:

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[conventional-commit-lint-gcf]

🤖 I detect that the PR title and the commit message differ and there's only one commit. To use the PR title for the commit history, you can use Github's automerge feature with squashing, or use automerge label. Good luck human!

-- conventional-commit-lint bot
https://conventionalcommits.org/

[ericzzzzzzz]

Hi @riyamittal009 , skaffold released a new schema since pr is created, this causes ci fail. Could you rebase your pr?

[renzodavid9]

Hey @riyamittal009, just a friendly ping about previous comment. Thanks a lot! 😄

[riyamittal009]

Just rebased! :)