Simplify the diff message for sensitive data

[sanposhiho]

What this PR does / why we need it:

• change to simple message(****) for sensitive data

Which issue(s) this PR fixes:

Fixes #930

Does this PR introduce a user-facing change?:

NONE

[pipecd-bot]

Welcome @sanposhiho!

Thanks for your contributing. It looks like this is your first PR to this repository 🎉. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA). Please read the CLA and leave a /cla sign comment on this pull request to sign the CLA.

[sanposhiho]

/cla sign

[pipecd-bot]

Thank you for signing the CLA. Your signing has been successfully committed.

[nakabonne]

@sanposhiho Hey, thanks for your contribution! Looks pretty neat :-D
/trigger presubmits

[nakabonne]

/lgtm

[nakabonne]

/trigger presubmits

[pipecd-bot]

@nakabonne: Your requested presubmits has been scheduled in response to this comment.

[pipecd-bot]

Code coverage for golang is 32.96%. This pull request increases coverage by 0.01%.

File	Function	Base	Head	Diff
pkg/app/piped/diff/renderer.go	WithMaskPath	--	0.00%	+0.00%
pkg/app/piped/diff/renderer.go	WithRedactPath	0.00%	--	+-0.00%

[nghialv]

@sanposhiho Thanks for your pull request.
/approve

[pipecd-bot]

This pull request is APPROVED by nghialv.

Approvers can cancel the approval by writing /approve cancel in a comment. Any additional commits also will change this pull request to be not-approved.

[nakabonne]

/trigger presubmits

[pipecd-bot]

@nakabonne: Your requested presubmits has been scheduled in response to this comment.

[nakabonne]

@sanposhiho I can’t wait to work with you 😄