[Snyk] Fix for 3 vulnerabilities

[Ximinhan]

Snyk has created this PR to fix 3 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• requirements.txt

⚠️ Warning

h-doozer 2.0.9 requires rpm-py-installer, which is not installed.
rh-doozer 2.0.9 requires mysql-connector-python, which is not installed.
rh-doozer 2.0.9 has requirement python-dateutil~=2.8.1, but you have python-dateutil 2.9.0.post0.
requests-gssapi 1.2.3 requires gssapi, which is not installed.

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• Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci]

@Ximinhan: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/security	50f7326	link	false	/test security

Full PR test history. Your PR dashboard.

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