fix gh cli install permissions and cleanup release pipeline (#2616)

Summary:
This change fixes permission and syntax errors in the release pipeline
that were blocking the installation of the GitHub CLI.

  Key Changes:
* Resolved Permissions: Added sudo to administrative commands (apt,
mkdir, tee) in pipelines/bazel-release.yml to fix "Permission denied"
errors when creating /etc/apt/keyrings.

* Corrected Escaping: Properly escaped shell variables (\$(...)) to
ensure they execute inside the Docker container rather than being
interpolated by Buildkite.

   * Pipeline Cleanup: 
* Removed the sed command that was dynamically modifying
scripts/ci/build.sh, favoring a cleaner approach.

* Syntax Fix: Corrected a line-break issue in the GitHub CLI repository
configuration command.
   
followup to
https://github.com/bazelbuild/continuous-integration/pull/2602/changes