Upgrade go-spaceapi-validator: 0.0.6 → 0.2.0

[dbrgn]

I ran:

go get github.com/spaceapi-community/go-spaceapi-validator@v0.2.0
go mod tidy

...to update the library.

I then ran go run ./... and tested the validator:

cat luxeria.json | http post http://localhost:8080/v2/validateJSON

...which worked!

{
    "checkedVersions": [
        "15"
    ],
    "message": "",
    "valid": true,
...