Consolidate API versions to libpod version package

[jwhonce]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug (technical debt)

Description

Currently the API version is defined in the API package, the bindings, and the libpod version package

Describe the results you received:

Currently there are a possibility for the libpod and API version to drift without notice.

Describe the results you expected:

Consolidate API version maps for API and libpod into libpod version package. At least then you will see all versions in one file.

Additional information you deem important (e.g. issue happens only occasionally):

Output of podman version:

<= 3.0.0

[openshift-ci-robot]

@jwhonce: The label(s) kind/(technical, kind/debt) cannot be applied, because the repository doesn't have them

In response to this:

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug (technical debt)

Description

Currently the API version is defined in the API package, the bindings, and the libpod version package

Describe the results you received:

Currently there are a possibility for the libpod and API version to drift without notice.

Describe the results you expected:

Consolidate API version maps for API and libpod into libpod version package. At least then you will see all versions in one file.

Additional information you deem important (e.g. issue happens only occasionally):

Output of podman version:

<= 3.0.0

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