fix(deps): update module github.com/hashicorp/terraform-plugin-go to v0.28.0 (#62)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Sierra <git@sierrac.dev>

Author: renovate[bot]

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/hashicorp/go-retryablehttp v0.7.7
 	github.com/hashicorp/terraform-plugin-framework v1.15.0
 	github.com/hashicorp/terraform-plugin-framework-validators v0.18.0
-	github.com/hashicorp/terraform-plugin-go v0.27.0
+	github.com/hashicorp/terraform-plugin-go v0.28.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/hashicorp/terraform-plugin-testing v1.13.1
 	github.com/oapi-codegen/runtime v1.1.1

go.sum

@@ -90,8 +90,8 @@ github.com/hashicorp/terraform-plugin-framework v1.15.0 h1:LQ2rsOfmDLxcn5EeIwdXF
 github.com/hashicorp/terraform-plugin-framework v1.15.0/go.mod h1:hxrNI/GY32KPISpWqlCoTLM9JZsGH3CyYlir09bD/fI=
 github.com/hashicorp/terraform-plugin-framework-validators v0.18.0 h1:OQnlOt98ua//rCw+QhBbSqfW3QbwtVrcdWeQN5gI3Hw=
 github.com/hashicorp/terraform-plugin-framework-validators v0.18.0/go.mod h1:lZvZvagw5hsJwuY7mAY6KUz45/U6fiDR0CzQAwWD0CA=
-github.com/hashicorp/terraform-plugin-go v0.27.0 h1:ujykws/fWIdsi6oTUT5Or4ukvEan4aN9lY+LOxVP8EE=
-github.com/hashicorp/terraform-plugin-go v0.27.0/go.mod h1:FDa2Bb3uumkTGSkTFpWSOwWJDwA7bf3vdP3ltLDTH6o=
+github.com/hashicorp/terraform-plugin-go v0.28.0 h1:zJmu2UDwhVN0J+J20RE5huiF3XXlTYVIleaevHZgKPA=
+github.com/hashicorp/terraform-plugin-go v0.28.0/go.mod h1:FDa2Bb3uumkTGSkTFpWSOwWJDwA7bf3vdP3ltLDTH6o=
 github.com/hashicorp/terraform-plugin-log v0.9.0 h1:i7hOA+vdAItN1/7UrfBqBwvYPQ9TFvymaRGZED3FCV0=
 github.com/hashicorp/terraform-plugin-log v0.9.0/go.mod h1:rKL8egZQ/eXSyDqzLUuwUYLVdlYeamldAHSxjUFADow=
 github.com/hashicorp/terraform-plugin-sdk/v2 v2.37.0 h1:NFPMacTrY/IdcIcnUB+7hsore1ZaRWU9cnB6jFoBnIM=