ciq-cherry-pick should alwasy use the 40character sha in the header

[PlaidCat]

When creating the CIQ header we should ensure that we use the 40character sha.

The users should be able to input any valid length SHA and then we use the full sha in our header and pass through to git cherry-pick.

We need to default to this because we create character maps of SHAs when we need to forward port changes between major LTS versions and rolling release updates that helps us easily identify what has been done between base versions of OS iterations.