Added an event for default rule read shell configuration file

[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 rule read shell configuration file.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

[GLVSKiriti]

/kind feature

[GLVSKiriti]

I tested this event by enabling in rules file here. And on running event code a warning log is produced on left terminal as expected

[GLVSKiriti]

@FedeDP In this just created a unique temp directory as you said in one of previous PR's and finally created a .bashrc file in it and its enough to trigger the rule

event-generator/events/syscall/read_shell_configuration_file.go

Lines 31 to 39 in 38aae0a

	tempDirectoryName, err := os.MkdirTemp("/", "created-by-event-generator-")
	if err != nil {
	return err
	}
	defer os.RemoveAll(tempDirectoryName)
	filename := filepath.Join(tempDirectoryName, ".bashrc")
	// os.Create is enough to trigger the rule
	if _, err := os.Create(filename); err != nil {

[FedeDP]

/approve

[poiana]

LGTM label has been added.

Git tree hash: 2abcfb01159180bea7c57fe0950f63c84eb72053

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

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

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