[CI] Add end-to-end testing of Meshery Operator deployments

[leecalcote]

Current Behavior

In order to verify whether changes in a PR are positive and resolve the issue at-hand, we'll want to test.

Desired Behavior

In general, the meshery-operator repo is egregiously missing such tests. Let's fix that.

Implementation

1. copy/paste a workflow from the meshery/meshery repo that checks out a golang program, build the docker container image for meshery-operator
2. deploys a kind cluster and installs the meshery-operator helm chart using the freshly built image.

Acceptance Tests

1. This is just a smoke test. Deeper tests will come later in order to verify MeshSync.

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