The prior commit added `set -o pipefail` to catch yq failures in the
prepull pipeline. CI failed at runtime: hack/cozytest.sh has a
`#!/bin/sh` shebang, /bin/sh is dash on Ubuntu CI, and dash rejects
`set -o pipefail` ("Illegal option").
Drop the pipe entirely. Each step is now its own command with stdin/
stdout redirection — set -e catches failures at the helm-template, yq,
or prepull stage without needing pipefail and without `var=$(...)`
captures that would balloon the `set -x` trace with rendered YAML.
Verified under dash in Ubuntu 24.04 by running cozytest.sh against the
test.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Myasnikov Daniil <myasnikovdaniil2001@gmail.com>