feat: add support for security context

[mowies]

This PR

• adds the (container) security context to the chart generation

[mowies]

@arttor this PR should be ready for review :)

[arttor]

@mowies looks really nice and ready to merge. i am just thinking is there any case when chart maintainer doesn't want securityContext to be modified. In this case we should add flag and add securityContext to template only if it is enabled. what do you think?

[mowies]

I don't really see a use case for the CLI flag honestly.. I think if you have the security context set up, you will probably also want to show those values in the helm chart. Maybe we can leave that for now and see if users request it in the future?
Should be very easy to add in the future as well.

[arttor]

@mowies can you please update your branch? i cannot merge pr due to conflicts

[mowies]

@arttor done

[arttor]

@mowies still can't

[mowies]

ok this is very weird. for me, it shows everything green with no conflicts. i will do a full rebase...

[arttor]

strange, i still can't merge. can you try to rebase main?

[mowies]

ok, all done. seem that some examples were not fully re-generated with the last PR. I regenerated both the operator and the sample app again.

[arttor]

@mowies thank you! Your changes are available in v0.3.29 release