fix add_time_report_to_email keyError issue

[dahorak]

This fix should avoid following issues:

INTERNALERROR>   File "/home/jenkins/workspace/qe-deploy-ocs-cluster/ocs-ci/ocs_ci/framework/pytest_customization/reports.py", line 166, in pytest_report_teststatus
INTERNALERROR>     GV.TIMEREPORT_DICT[report.nodeid]["total"] += round(report.duration, 2)
INTERNALERROR> KeyError: 'total'

and

email_reports(session)
  File "/home/jenkins/workspace/qe-deploy-ocs-cluster/ocs-ci/ocs_ci/utility/utils.py", line 1744, in email_reports
    add_time_report_to_email(session, soup)
  File "/home/jenkins/workspace/qe-deploy-ocs-cluster/ocs-ci/ocs_ci/utility/utils.py", line 4497, in add_time_report_to_email
    sorted(data.items(), key=lambda item: item[1]["total"], reverse=True)
  File "/home/jenkins/workspace/qe-deploy-ocs-cluster/ocs-ci/ocs_ci/utility/utils.py", line 4497, in <lambda>
    sorted(data.items(), key=lambda item: item[1]["total"], reverse=True)
KeyError: 'total'

[dahorak]

Verification job: https://url.corp.redhat.com/9ce11a5 (the failures are for different reason).

[openshift-ci]

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This pull-request has been approved by: dahorak, shivamdurgbuns, vavuthu

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