feat: add securityContext for exporter, initcontainers and sidecars

[lsoica]

Description

Fixes #978

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• [x] Tests have been added/modified and all tests pass.
• [x] Functionality/bugs have been confirmed to be unchanged or fixed.
• [x] I have performed a self-review of my own code.
• [x] Documentation has been updated or added where necessary.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 44.63%. Comparing base (d121d86) to head (70e65f7). Report is 69 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #987 +/- ## ========================================== + Coverage 35.20% 44.63% +9.43% ========================================== Files 19 20 +1 Lines 3213 2693 -520 ========================================== + Hits 1131 1202 +71 + Misses 2015 1418 -597 - Partials 67 73 +6 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.