Bump terraform-json to v0.22.1

[AislingHPE]

There is an issue in v0.17.1 of terrraform-json where state files can't
be read when there are checks present, since checks are an arrray, and
the tool tries to marshal them to a strruct. This causes an issue with
the ShowStateFile function.

Bumping terraform-json to the latest version and running go mod tidy
to pull in its dependencies.

Original issue in tfexec:
hashicorp#415

Line which doesn't work currently in this repo:

tofu-exec/tfexec/show.go

Lines 95 to 99 in e5963f1

	showCmd := tf.showCmd(ctx, true, mergeEnv, statePath)
	var ret tfjson.State
	ret.UseJSONNumber(true)
	err = tf.runTerraformCmdJSON(ctx, showCmd, &ret)

Patch to terraform-json:
hashicorp/terraform-json#101

Changlog from v0.17.1 to v0.22.1:
https://github.com/hashicorp/terraform-json/releases

[Yantrio]

Hi, Thanks for this contribution. Right now we are not sure if we want to maintain this repository/fork or not because of the maintainance cost included with that. However right now I am happy to merge this as it's an extremely simple change. But I do recommend that you continue to use terraform-json if possible in the meantime.

If/When we do make a choice to maintain this package, I will let you know.