build(deps): Bump github.com/hashicorp/terraform-exec (#341)

Bumps [github.com/hashicorp/terraform-exec](https://github.com/hashicorp/terraform-exec) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/hashicorp/terraform-exec/releases)
- [Changelog](https://github.com/hashicorp/terraform-exec/blob/main/CHANGELOG.md)
- [Commits](hashicorp/terraform-exec@v0.20.0...v0.21.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-exec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/hashicorp/hc-install v0.6.4
 	github.com/hashicorp/hcl/v2 v2.20.1
 	github.com/hashicorp/logutils v1.0.0
-	github.com/hashicorp/terraform-exec v0.20.0
+	github.com/hashicorp/terraform-exec v0.21.0
 	github.com/hashicorp/terraform-json v0.22.1
 	github.com/hashicorp/terraform-plugin-go v0.22.2
 	github.com/hashicorp/terraform-plugin-log v0.9.0

go.sum

@@ -68,8 +68,8 @@ github.com/hashicorp/hcl/v2 v2.20.1 h1:M6hgdyz7HYt1UN9e61j+qKJBqR3orTWbI1HKBJEdx
 github.com/hashicorp/hcl/v2 v2.20.1/go.mod h1:TZDqQ4kNKCbh1iJp99FdPiUaVDDUPivbqxZulxDYqL4=
 github.com/hashicorp/logutils v1.0.0 h1:dLEQVugN8vlakKOUE3ihGLTZJRB4j+M2cdTm/ORI65Y=
 github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
-github.com/hashicorp/terraform-exec v0.20.0 h1:DIZnPsqzPGuUnq6cH8jWcPunBfY+C+M8JyYF3vpnuEo=
-github.com/hashicorp/terraform-exec v0.20.0/go.mod h1:ckKGkJWbsNqFKV1itgMnE0hY9IYf1HoiekpuN0eWoDw=
+github.com/hashicorp/terraform-exec v0.21.0 h1:uNkLAe95ey5Uux6KJdua6+cv8asgILFVWkd/RG0D2XQ=
+github.com/hashicorp/terraform-exec v0.21.0/go.mod h1:1PPeMYou+KDUSSeRE9szMZ/oHf4fYUmB923Wzbq1ICg=
 github.com/hashicorp/terraform-json v0.22.1 h1:xft84GZR0QzjPVWs4lRUwvTcPnegqlyS7orfb5Ltvec=
 github.com/hashicorp/terraform-json v0.22.1/go.mod h1:JbWSQCLFSXFFhg42T7l9iJwdGXBYV8fmmD6o/ML4p3A=
 github.com/hashicorp/terraform-plugin-go v0.22.2 h1:5o8uveu6eZUf5J7xGPV0eY0TPXg3qpmwX9sce03Bxnc=