feat: Support for automatically Helm roll deployments

[dadrus]

Related issue(s)

closes #701

Checklist

• I agree to follow this project's Code of Conduct.
• I have read, and I am following this repository's Contributing Guidelines.
• I have read the Security Policy.
• I have referenced an issue describing the bug/feature request.

Description

Adds an annotation as described in https://helm.sh/docs/howto/charts_tips_and_tricks/#automatically-roll-deployments

This should automatically ensure a zero-downtime restart of the heimdall pods should the values and by extension the ConfigMap be updated via helm upgrade.

[codecov]

Codecov Report

Merging #731 (572c261) into main (d277887) will increase coverage by 0.10%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #731      +/-   ##
==========================================
+ Coverage   89.49%   89.59%   +0.10%     
==========================================
  Files         213      215       +2     
  Lines        9112     9229     +117     
==========================================
+ Hits         8155     8269     +114     
- Misses        765      767       +2     
- Partials      192      193       +1     

see 18 files with indirect coverage changes

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