Update Flux CLI to 0.29.4

Summary

Request to update an application in Iron Bank.

Version: Flux update to 0.29.3 - Big Bang is targeting an update to Flux 0.29.3 in the next release. Since the CLI is not backwards compatible this image should be updated to include the latest tooling as well.

Tasks

Contributor:

Update Dockerfile, hardening_manifest.yaml and adhere to Iron Bank requirements
Ensure container builds successfully in the Iron Bank pipeline
Provide justifications for findings in the VAT (docs)
Open a Merge Request from your branch to development
Apply the ~"Hardening::Approval" label to this issue and wait for feedback

Iron Bank:

Merge contributor branch to development
Review findings and justifications
Send approval request to Authorizing Official
Merge development to master and close issue after approval from Authorizing Official

Edited Apr 27, 2022 by Andy Maksymowicz

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information