update hc-install from v0.3.1 to v0.3.2

[jafowler]

Due to a recent change (hashicorp/hc-install#56) hc-install now throws errors on content-type when attempting to install terraform.

[github-actions]

Oops! It looks like no changelog entry is attached to this PR. Please include a release note as described in https://github.com/cloudflare/terraform-provider-cloudflare/blob/master/docs/changelog-process.md.

Example:

```release-note:TYPE
Release note
```

If you do not require a release note to be included, please add the workflow/skip-changelog-entry label.

[github-actions]

This project handles dependency version bumps (including upstream changes from cloudflare-go) independently of the standard PR process using automation. This allows the dependency upgrades to land without causing merge conflicts in multiple branches and handled in a consistent way. The exception to this is security related dependency upgrades but they should be co-ordinated with the maintainer team privately.

Please remove the changes to the go.mod or go.sum files from this PR in order to proceed with review and merging.