🌱 ROSA: Add capa agent and version to ocm client config

[serngawy]

What type of PR is this?
/kind support

What this PR does / why we need it:
Set the ROSA client user agent and version configuration. This is needed so that the CAPA provider can be correctly identified in ROSA logs.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• includes emoji in title
• adds unit tests
• adds or updates e2e tests

Release note:

None

[serngawy]

/cc @PanSpagetka

[k8s-ci-robot]

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[damdo]

/lgtm

/assign @nrb

[nrb]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nrb

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[damdo]

/test pull-cluster-api-provider-aws-test