[Debian] Fix the delimiter of debian time source

[alanmcanonical]

Description:

• Fix the delimiter of debian time server and time pool

Rationale:

• The delimiter of oval and bash is "," not space, found out during dev of Add cis designated nist time servers #13819

[openshift-ci]

Hi @alanmcanonical. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[Mab879]

Thanks!