Handle CheckCert Correctly for OTLP Outputs

[rrhubenov]

What type of PR is this?
/kind bug

/area outputs

What this PR does / why we need it:
The OTLP outputs, when configured with CheckCert: false would use an Insecure option, which results in TLS plaintext communication rather than the expected, which is TLS but without checking the validity of the server certificate.

This PR fixes this issue by passing the correct option to achieve the desired correct effect.
This PR also fixes a bug where the Traces.CheckCert field was checked for the Logs output rather than Logs.CheckCert.
Which issue(s) this PR fixes:

NONE

Special notes for your reviewer:

[poiana]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: rrhubenov
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[poiana]

Welcome @rrhubenov! It looks like this is your first PR to falcosecurity/falcosidekick 🎉

[poiana]

Issues go stale after 90d of inactivity.

Mark the issue as fresh with /remove-lifecycle stale.

Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Provide feedback via https://github.com/falcosecurity/community.

/lifecycle stale

[leogr]

/remove-lifecycle stale

[leogr]

Closing and reopening to trigger the CI
/close

[poiana]

@leogr: Closed this PR.

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In response to this:

Closing and reopening to trigger the CI
/close

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[leogr]

/reopen

[poiana]

@leogr: Reopened this PR.

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In response to this:

/reopen

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[leogr]

Hey @rrhubenov

Thank you for this PR. It SGTM, but I think that users who had CheckCert: false to talk to a non-TLS collector will break, since the client now attempts a TLS handshake.

We need either a new Insecure config field or just documenting the potential breaking change. Wdyt?