[supervisor] show detail message if supervisor failed

[iQQBot]

Description

show detail message if supervisor failed

Related Issue(s)

Fixes #14293

How to test

1. start a workspace using https://github.com/iQQBot/test.test/tree/pd/test-log this branch, it will fail and show detail log

Release Notes

NONE

Documentation

Werft options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh

[werft-gitpod-dev-com]

started the job as gitpod-build-pd-sup-log.1 because the annotations in the pull request description changed
(with .werft/ from main)

[iQQBot]

/werft run with-clean-slate-deployment

👍 started the job as gitpod-build-pd-sup-log.3
(with .werft/ from main)

[iQQBot]

/werft run

👍 started the job as gitpod-build-pd-sup-log.4
(with .werft/ from main)

[iQQBot]

/werft run

👍 started the job as gitpod-build-pd-sup-log.5
(with .werft/ from main)

[mustard-mh]

/werft run

👍 started the job as gitpod-build-pd-sup-log.6
(with .werft/ from main)

[kylos101]

Thank you @iQQBot and @mustard-mh ! 💪

cc: @WVerlaek @atduarte for 👀 , fixes #14293, the test in this PR used an alpine based image.