* actions: use self-hosted runners in hashicorp/vault
While it is recommended that we use self-hosted runners for every
workflow in private and internal accounts, this change was primarily
motivated by different runner types using different cache paths. By
using the same runner type everywhere we can avoid double caches of the
internal Vault tools.
* disable the terraform wrapper in ci-bootstrap to handle updated action
Signed-off-by: Ryan Cragun <me@ryan.ec>
Co-authored-by: Ryan Cragun <me@ryan.ec>