Added an event for default stable rule "Find AWS Credentials"

[GLVSKiriti]

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind documentation

/kind tests

/kind feature

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area commands

/area pkg

/area events

What this PR does / why we need it:
Added an event for default stable rule "Find AWS Credentials"

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

[GLVSKiriti]

Below screenshot where test is successful and on left terminal it produces warning message on running event code as expected

[GLVSKiriti]

@leogr KIndly also review this PR!

Question: Will the rule triggers even if find utility not exists?

Ans: No it wont trigger if find utility not exists so we can skip the action in this case!!

[GLVSKiriti]

@FedeDP In this also just executing find command is enough to trigger this stable rule

event-generator/events/syscall/find_aws_credentials.go

Lines 25 to 34 in 3d16d70

	func FindAwsCredentials(h events.Helper) error {
	path, err := exec.LookPath("find")
	if err != nil {
	// if we don't have a find, just bail
	return &events.ErrSkipped{
	Reason: "find utility not found in path",
	}
	}
	cmd := exec.Command(path, ".aws/credentials")
	err = cmd.Run()

[FedeDP]

/approve

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FedeDP, GLVSKiriti

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[poiana]

LGTM label has been added.

Git tree hash: 2b0491143bb8f40f69b4cd861bbf6194aed56acf