OSD-20175: Minor fixes to dynatrace logs commands

[devppratik]

• Removes vault path & address from code and uses them from config
• Makes cluster ID as argument not flag

[openshift-ci-robot]

@devppratik: This pull request references OSD-20175 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.16.0" version, but no target version was set.

In response to this:

• Removes vault path & address from code and uses them from config
• Makes cluster ID as argument not flag

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[typeid]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: devppratik, typeid

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[openshift-ci]

@devppratik: all tests passed!

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