[ upstream commit 77cafec ]

This commit adds a new job to the beginning of workflows that have a
workflow_dispatch trigger whose inputs provide important context to the
run. The job echos the inputs so they can be viewed in the logs by users.

A majority of the workflows in the cilium repository have a
workflow_dispatch trigger, which is used by users and Ariane to run
workflows as needed. These workflows take a variety of inputs that may
not always be made available in the logs, as they may not be used in a
place that warrants their value being outputted. This obfuscation can make
debugging these workflows difficult at times, as these inputs provide
important context to the origin of the workflow's trigger.

For instance, the `PR-number` input is used to determine the concurrency
group for a workflow run. It is ignored everywhere else. The value of
the concurrency group is not available via GitHub's UI or API, therefore
this input obfuscated. However, the `PR-number` input provides valuable
metadata, being used to describe the branch or PR that a workflow was
triggered for.

Fixes: #31207

Signed-off-by: Ryan Drew <ryan.drew@isovalent.com>
Signed-off-by: Gilberto Bertin <jibi@cilium.io>