Bump github.com/hashicorp/terraform-plugin-go from 0.20.0 to 0.21.0

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

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

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/ssm v1.44.7
 	github.com/hashicorp/terraform-plugin-docs v0.16.0
 	github.com/hashicorp/terraform-plugin-framework v1.5.0
-	github.com/hashicorp/terraform-plugin-go v0.20.0
+	github.com/hashicorp/terraform-plugin-go v0.21.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/melbahja/goph v1.4.0
 	github.com/spf13/cast v1.6.0

go.sum

@@ -100,8 +100,8 @@ github.com/hashicorp/terraform-plugin-docs v0.16.0 h1:UmxFr3AScl6Wged84jndJIfFcc
 github.com/hashicorp/terraform-plugin-docs v0.16.0/go.mod h1:M3ZrlKBJAbPMtNOPwHicGi1c+hZUh7/g0ifT/z7TVfA=
 github.com/hashicorp/terraform-plugin-framework v1.5.0 h1:8kcvqJs/x6QyOFSdeAyEgsenVOUeC/IyKpi2ul4fjTg=
 github.com/hashicorp/terraform-plugin-framework v1.5.0/go.mod h1:6waavirukIlFpVpthbGd2PUNYaFedB0RwW3MDzJ/rtc=
-github.com/hashicorp/terraform-plugin-go v0.20.0 h1:oqvoUlL+2EUbKNsJbIt3zqqZ7wi6lzn4ufkn/UA51xQ=
-github.com/hashicorp/terraform-plugin-go v0.20.0/go.mod h1:Rr8LBdMlY53a3Z/HpP+ZU3/xCDqtKNCkeI9qOyT10QE=
+github.com/hashicorp/terraform-plugin-go v0.21.0 h1:VSjdVQYNDKR0l2pi3vsFK1PdMQrw6vGOshJXMNFeVc0=
+github.com/hashicorp/terraform-plugin-go v0.21.0/go.mod h1:piJp8UmO1uupCvC9/H74l2C6IyKG0rW4FDedIpwW5RQ=
 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-registry-address v0.2.3 h1:2TAiKJ1A3MAkZlH1YI/aTVcLZRu7JseiXNRHbOAyoTI=