SEC-090: Automated trusted workflow pinning (2023-04-19)

[hashicorp-tsccr[bot]]

Hello, This PR was auto-generated to pin the Actions workflow files in this repository to use trusted SHAs. This is in support of RFC SEC-090 which is due to be implemented by EOQ2 FY24.

Please do the following:

• Approve and merge this PR if you are happy with the changes.
• Check if there are any untrusted third-party Actions in the workflow files and onboard them to the TSCCR.
• The yaml comments "# TSCCR: no entry for repository..." or "# TSCCR: no version of..." in the workflow files identifies an untrusted Action.
• If you have to onboard any third-party Actions, update and pin your workflows using the tsccr-helper tool after the Actions have been onboarded OR reach out to #team-prodsec and we can run this automation again.
• Verify that your Actions are still working as expected after pinning.

Please reach out to #team-prodsec if you have any questions.

[radeksimko]

All changes are no-op (comments only).