Added an event for default rule "Kubernetes Client Tool Launched in Container"

[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 "Kubernetes Client Tool Launched in Container" as mentioned here

Which issue(s) this PR fixes:

Fixes #168

Special notes for your reviewer:

[GLVSKiriti]

@FedeDP @leogr Just by running the kubectl the rule triggers

And the docker file I used is

FROM alpine:latest

# Install dependencies
RUN apk add --no-cache curl

# Install kubectl
RUN curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" \
    && chmod +x kubectl \
    && mv kubectl /usr/local/bin/

CMD ["sh"]

[FedeDP]

LGTM!
/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: 044d51c9bf689090c9eb8b5089fbfc289248f4c4