[stable/sonarqube] Fix plugins install

[rjkernick]

Signed-off-by: Rob Kernick [email protected]

What this PR does / why we need it: Fixes plugins installed at startup

Which issue this PR fixes

(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged)

• fixes #

Special notes for your reviewer:

Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• DCO signed
• Chart Version bumped
• Variables are documented in the README.md

[rjkernick]

/ok-to-test

[rjkernick]

/retest

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[melissapalmer]

Please be careful of this cause of the issue raised in
#10195

The PR which I did that introduced: copy-plugins.yaml & tmp folder etc. does allow for the install of custom plugins

I failed to add the following to docs: include this in your values.yml file

command:
  - /usr/local/copy_plugins.sh

#10195 (comment)

Please do make sure that issue 10195 isn't reverted with this change.

[rjkernick]

/hold