Update Terraform null to v3.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
null (source)	required_provider	minor	3.1.1 -> 3.2.0

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Release Notes

hashicorp/terraform-provider-null

### [`v3.2.0`](https://togithub.com/hashicorp/terraform-provider-null/blob/HEAD/CHANGELOG.md#​320-October-25-2022) [Compare Source](https://togithub.com/hashicorp/terraform-provider-null/compare/v3.1.1...v3.2.0) NOTES: - Provider: Rewritten to use the new [`terraform-plugin-framework`](https://www.terraform.io/plugin/framework) ([#​150](https://togithub.com/hashicorp/terraform-provider-null/pull/150))

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Configuration

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