TT-12054: add security context to init containers

[olamilekan000]

Description

change adds security context to init containers, bootstrap pods, and also updates the bootstrap pod images

Related Issue

https://tyktech.atlassian.net/browse/TT-12054

Motivation and Context

Test Coverage For This Change

Screenshots (if appropriate)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Refactoring or add test (improvements in base code or adds test coverage to functionality)
• [ ] Documentation updates or improvements.

Checklist

• [x] Make sure you are requesting to pull a topic/feature/bugfix branch (right side). If PRing from your fork, don't come from your master!
• [x] Make sure you are making a pull request against our master branch (left side). Also, it would be best if you started your change off our latest master.
• [ ] My change requires a change to the documentation.
  • [ ] I have manually updated the README(s)/documentation accordingly.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.