* specify version
Without specifying `@v2.0.0` GitHub says the string is not the correct format
```
The workflow is not valid. .github/workflows/integration_tests.yml (Line: 10, Col: 15): Expected format {org}/{repo}[/path]@ref. Actual 'hashicorp/vault-action',Input string was not in a correct format.```
* v2.0.1
Co-authored-by: Jason O'Donnell <[email protected]>
Co-authored-by: Jason O'Donnell <[email protected]>
