Bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.26.1 to 2.27.0

Bumps [github.com/hashicorp/terraform-plugin-sdk/v2](https://github.com/hashicorp/terraform-plugin-sdk) from 2.26.1 to 2.27.0.
- [Release notes](https://github.com/hashicorp/terraform-plugin-sdk/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/terraform-plugin-sdk/compare/v2.26.1...v2.27.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-plugin-sdk/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/zclconf/go-cty/cty/path.go

@@ -225,7 +225,9 @@ func (s IndexStep) Apply(val Value) (Value, error) {
 		return NilVal, errors.New("key value not number or string")
 	}
 
-	has := val.HasIndex(s.Key)
+	// This value needs to be stripped of marks to check True(), but Index will
+	// apply the correct marks for the result.
+	has, _ := val.HasIndex(s.Key).Unmark()
 	if !has.IsKnown() {
 		return UnknownVal(val.Type().ElementType()), nil
 	}