feat(securityGroups): Improve robustness of security group reconcilers

[gvdhart]

Rework of the security group reconcilers so that they are more robust and stable.

Add option in security group spec to remove default outbound rule that allows all outbound traffic

fixes #344 fixes #326 fixes #322

[gvdhart]

Tested with a large cluster (10+ sg's and 30+ sg rules) and it works well, reconciliation time of sg is greatly improved and more robust. Adding security groups after the OscCluster has been reconciled works. Adding security group rules after the OscCluster has been reconciled works. Deleting the OscCluster will correctly delete all sg rules and sg's. Deleting a single sg after the OscCluster has been reconciled works.

TODO:

• Deleting a single sg rule from the OscCluster resource does not work as we require the sgRule spec to delete it, however the spec is already deleted when running the reconcile loop.
• Write tests.

[outscale-hmi]

Hello,

I reviewed this PR and I’m okay with the overall logic. However, some unit tests are failing because of missing calls in certain test cases, additionally, there's a segmentation fault occurring, which likely needs addressing. Could you please update the unit tests to include these missing calls to ensure full coverage of the new logic?