feat: add HostAliases support to Fluent Bit and Fluentd specifications

[MioOgbeni]

What this PR does / why we need it:

Hi, I need to have option to set HostAliases into FluentD and FluentBit pods, so I decided to add this option directly to the operator for everyone. :)

Which issue(s) this PR fixes:

None

Does this PR introduced a user-facing change?

- HostAliases can be now passed into FluentD and FluentBit Pods.

Additional documentation, usage docs, etc.:

[jjsiv]

Can you run make generate?

[MioOgbeni]

Hey, no problem. Previously I edited the CRD and setup manifests manually, but now I also generated them via make manifests, so now they are correctly autogenerated.

But when I do make generate, the only change is the removal of this constraints in all zz_generated.deepcopy files. Is this a required change @jjsiv? It doesn't relate to my changes, but to the go version (I'm using go1.22.9)

fluent-operator/apis/fluentbit/v1alpha2/plugins/custom/zz_generated.deepcopy.go

Line 2 in e2f6c80

// +build !ignore_autogenerated

[jjsiv]

Ok, that's good. The make generate should also update the generated DeepCopy functions for with the new HostAliases field
https://github.com/fluent/fluent-operator/blob/master/apis/fluentbit/v1alpha2/zz_generated.deepcopy.go#L955

[MioOgbeni]

Oh, yes. I haven't checked all the files, but the one you mentioned and the same one for FluentD contain DeepCopy functions with the HostAliases field.

I commited it now @jjsiv ;)