feat(redis): Inject creds via volume

[olivergondza]

What type of PR is this?

Uncomment only one /kind line, and delete the rest.
For example, > /kind bug would simply become: /kind bug

/kind bug
/kind cleanup
/kind failing-test
/kind enhancement
/kind documentation
/kind code-refactoring

What does this PR do / why we need it:

Avoid passing the password over environment variables and command line arguments. Downstream of:

• feat(redis): Inject creds via volume argoproj-labs/argocd-operator#2059
• feat(redis): Inject creds to agent via volume argoproj-labs/argocd-operator#2113

Have you updated the necessary documentation?

• [no] Documentation update is required by this PR.
• [no] Documentation has been updated.

Which issue(s) this PR fixes:

Fixes #?

Test acceptance criteria:

• Unit Test
• E2E Test

How to test changes / Special notes to the reviewer:

Blocked until the upstream PRs are merged.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign adamsaleh for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[olivergondza]

Test failures are relevant...

[olivergondza]

/test v4.14-kuttl-sequential

[openshift-ci]

@olivergondza: 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/v4.14-kuttl-sequential	297d066	link	false	/test v4.14-kuttl-sequential

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.