Update provider to use explicitly version v0.1.0

[fabi200123]

• Update the provider to use version v0.1.0 explicitly

[gabriel-samfira]

This is not the interface version. This is the provider version.... The GetVersion() command gets the provider version. Not the interface version.

This needs to be 0.0.0-unknown by default. This will then be set by:

garm-provider-lxd/scripts/build-static.sh

Line 39 in b63472c

-ldflags "-extldflags '-static' -s -w -X main.Version=$VERSION" .

which also needs to be updated to no longer try to set the Version in main.go.

Also, this variable must be exported.

[gabriel-samfira]

This doesn't feel right. We either return a string or just print it, but not both. This function gets called in garm-provider-common here:

https://github.com/cloudbase/garm-provider-common/blob/899c120c80ce01a42e94cc2319e1e1df6407e4ff/execution/v0.1.0/execution.go#L159-L161

Which in turn gets used by the provider here:

garm-provider-lxd/main.go

Line 55 in b63472c

result, err := execution.Run(ctx, prov, executionEnv)

the result of which is printed here:

garm-provider-lxd/main.go

Lines 60 to 62 in b63472c

	if len(result) > 0 {
	fmt.Fprint(os.Stdout, result)
	}

if you test these changes with:

GARM_COMMAND="GetVersion" ./garm-provider-lxd

you will most likely get the version printed twice.