PyYAML security update

Bump pyyaml from 5.3 to 5.4 (#55)

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.3 to 5.4.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](https://github.com/yaml/pyyaml/compare/5.3...5.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Replace use of 'oc --export'

5.7.9

Fix for '--export' being removed (#54)

Add --version option

Add --version argument (#53)

Run black/isort on this

Avoid secret delete race conditions

If multiple ocdeployer processes are running, one process' SecretImporter might delete the secret while another is trying to link it. We now check the data of the desired secret vs the secret in the target namespace to see if it really does need to be imported.

Fix for secret importing

If secrets src project and destination project were the same, due to changes in 5.7.5, the secret was deleted before we attempted to import it. This issue has been fixed.

Tweak to secret importing

oc delete secrets before they are oc apply'd so that secrets with a null value will be properly updated.

Require sh >= 1.13.1

5.7.4

Require sh >= 1.13.1

Bug fix

5.7.3

Fix wait_for_exists

Bug fix

5.7.2

Fix string format

Add wait_for_exists, add cronjob restype, fix stdout/stderr processing

See #51