CAPI Operator: Setup new jobs for release-0.5 branch

[furkatgofurov7]

Latest stable release branch of CAPI Operator is release-0.5. This PR adds new periodic/presubmit jobs for the new release branch and drop running the CI in the old one (release-0.3).

[furkatgofurov7]

/assign @Fedosin

cc @alexander-demicev @Danil-Grigorev @damdo @JoelSpeed

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Danil-Grigorev, furkatgofurov7, vincepri

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Needs approval from an approver in each of these files:

• config/jobs/kubernetes-sigs/cluster-api-operator/OWNERS [furkatgofurov7]
• config/testgrids/kubernetes/sig-cluster-lifecycle/OWNERS [vincepri]

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[k8s-ci-robot]

@furkatgofurov7: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key cluster-api-operator-periodics-release-0-3.yaml using file ``
• key cluster-api-operator-periodics-release-0-5.yaml using file config/jobs/kubernetes-sigs/cluster-api-operator/cluster-api-operator-periodics-release-0-5.yaml
• key cluster-api-operator-presubmits-release-0-3.yaml using file ``
• key cluster-api-operator-presubmits-release-0-5.yaml using file config/jobs/kubernetes-sigs/cluster-api-operator/cluster-api-operator-presubmits-release-0-5.yaml

In response to this:

Latest stable release branch of CAPI Operator is release-0.5. This PR adds new periodic/presubmit jobs for the new release branch and drop running the CI in the old one (release-0.3).

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