Allow to configure both PreLogin and PostLogin Banners

[felix-kaestner]

No description provided.

[github-actions]

Merging this branch will decrease overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/ironcore-dev/network-operator/api/core/v1alpha1	0.00% (ø)
github.com/ironcore-dev/network-operator/internal/controller/core	69.75% (-0.12%)	👎
github.com/ironcore-dev/network-operator/internal/provider	20.00% (ø)
github.com/ironcore-dev/network-operator/internal/provider/cisco/nxos	12.60% (-0.05%)	👎

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Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/ironcore-dev/network-operator/api/core/v1alpha1/banner_types.go	0.00% (ø)	0	0	0
github.com/ironcore-dev/network-operator/internal/controller/core/banner_controller.go	65.57% (ø)	122	80	42
github.com/ironcore-dev/network-operator/internal/provider/cisco/nxos/banner.go	20.00% (-13.33%)	10 (+7)	2 (+1)	8 (+6)	💀
github.com/ironcore-dev/network-operator/internal/provider/cisco/nxos/provider.go	0.09% (-0.00%)	1160 (+8)	1	1159 (+8)	👎
github.com/ironcore-dev/network-operator/internal/provider/provider.go	20.00% (ø)	25	5	20

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.

Changed unit test files

• github.com/ironcore-dev/network-operator/internal/controller/core/banner_controller_test.go
• github.com/ironcore-dev/network-operator/internal/controller/core/suite_test.go
• github.com/ironcore-dev/network-operator/internal/provider/cisco/nxos/banner_test.go