`elan dump-state` should produce SemVer versions

[mhuisi]

Currently, elan dump-state produces the following version output as part of the JSON it produces:

"elan_version": {
  "current": "3.1.1 (4dd88de35 2024-10-08)",
  "newest": {
    "Ok": "v3.1.1"
  }
},

Neither current nor newest are proper SemVer versions, which means that downstream tooling needs to pre-parse these versions first (instead of using standard SemVer parsers).

It would be nice if elan dump-state could produce SemVer versions here.