chore: container did not support setting the timezone via an env variable

[zoobab]

Problem: container did not support setting the timezone via an env var like '-e TZ=Europe/Brussels'
Solution: adding tzdata package solve this issue

Note on DCO:

If the DCO action in the integration test fails, one or more of your commits are not signed off. Please click on the Details link next to the DCO action for instructions on how to resolve this.

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• Optional. My organization is added to USERS.md.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).

[jannfis]

Thanks @zoobab, the change makes sense to me.

Can you please fix the failing CI checks by signing off your commit?

[codecov]

Codecov Report

Merging #6481 (c36966d) into master (e58d94f) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #6481      +/-   ##
==========================================
+ Coverage   41.10%   41.11%   +0.01%     
==========================================
  Files         152      153       +1     
  Lines       20164    20294     +130     
==========================================
+ Hits         8288     8344      +56     
- Misses      10735    10794      +59     
- Partials     1141     1156      +15     

Impacted Files	Coverage Δ
util/git/workaround.go	46.87% <0.00%> (-6.07%)	⬇️
util/git/git.go	75.75% <0.00%> (-2.37%)	⬇️
server/application/logs.go	84.48% <0.00%> (-1.24%)	⬇️
cmd/util/repo.go	0.00% <0.00%> (ø)
util/settings/settings.go	46.75% <0.00%> (ø)
cmd/argocd/commands/repo.go	0.00% <0.00%> (ø)
pkg/apis/application/v1alpha1/repository_types.go	60.52% <0.00%> (ø)
util/proxy/proxy.go	85.71% <0.00%> (ø)
util/argo/argo.go	61.75% <0.00%> (+0.12%)	⬆️
reposerver/repository/repository.go	61.00% <0.00%> (+0.14%)	⬆️
... and 6 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e58d94f...c36966d. Read the comment docs.

[alexmt]

LGTM!

[jannfis]

LGTM

[DoumLaberge]

Can you explain how to set the TZ env when you install ArgoCD with the kubectl apply command?
Thank you