ENH: update IMAP CLI to support `vMMM.mmmm`

[tech3371]

Summary

We need to update imap_processing.cli.py::ProcessInstrument() to support this new version schema.

Requirements

The more specific the better.

• Update ProcessInstrument().post_processing to support MMM.mmmm
• Update ProcessInstrument to say that vMMM is DEPRECATED but support it for backward compatible while we make update
• Update imap_processing/cdf/config/imap_default_global_cdf_attrs.yaml from File_naming_convention: source_descriptor_datatype_yyyyMMdd_vNNN to File_naming_convention: source_descriptor_datatype_yyyyMMdd_vMMM.mmmm
• Update imap_processing/cdf/utils.py::write_cdf() to use new default, v001.0001 if nothing is provided.
• Double check that if any instrument is passing ProcessInstrument().version to their processing code. If so, check that this update won't effect processing code and update as needed. Right now, I checked and MAG().post_processing() is using it.

Related tickets

No response

[tech3371]

For this work, you can expect CLI command such as this

imap_cli --instrument glows --data-level l3a --descriptor hist --start-date 20260528 --version v012 --dependency imap_glows_l3a_hist-7f8b40f1_20260528-repoint00262_v012.json  --repointing repoint00262

and you can expect content of imap_glows_l3a_hist-7f8b40f1_20260528-repoint00262_v012.json to be in this format now.

{
    "dependency": [
        // current dependencies input format
        {
            "type": "spice",
            "files": [
                "naif0012.tls",
                "imap_sclk_0170.tsc"
            ]
        },
        {
            "type": "science",
            "files": [
                "imap_swe_l0_raw_20260513_v001.pkts"
            ]
        }
    ],
    "version": {
        // List of all descriptors produced by the job with
        // their major and minor version numbers
        "descriptor1": {
            "major_version": 2,
            "minor_version": 1
        },
        "descriptor2": {
            "major_version": 1,
            "minor_version": 0
        }
    }
}

[tech3371]

Update https://github.com/IMAP-Science-Operations-Center/imap_processing/blob/dev/imap_processing/cli.py#L400 as needed.