Build a Release workflow

[rooftopcellist]

We should add a GHA for releasing eda-server and eda-server-operator in tandem, and also have the ability to release eda-server-operator separately if desired.

The AWX pattern for mapping them is to have the awx-operator and awx release handled by the same GHA, which sets an env var for the awx version to use in the awx-operator image. Then the operator uses that env var as the default awx image version to use.

We should add a step to make a commit to a docs/version-matrix.md file.

Once this workflow is in place, we should cut the first v1.0.0 eda-server-operator release to denote that this is now a stable operator.

[rooftopcellist]

The release workflow is complete:

• Add Release Workflow and Single Command Install artifact #159
• Enable multi-arch builds in GHA for the main branch #161
• Add docs for the single-command install of the eda-server-operator #168
• Use docker engine for container build make targets in release GHA #189

As we have now had two successful releases (1.0.1 and 1.0.2) using this release workflow, I think we can close this issue.