feat(redis): deprecate Redis service

[GokceGK]

Description

relates to STACKITCLI-448

Checklist

• Issue was linked above
• Code format was applied: make fmt
• Examples were added / adjusted (see e.g. here)
• Docs are up-to-date: make generate-docs (will be checked by CI)
• Unit tests got implemented or updated
• Unit tests are passing: make test (will be checked by CI)
• No linter issues: make lint (will be checked by CI)

[GokceGK]

This PR must be merged after this one is merged #1530

[github-actions]

Merging this branch will not change overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/stackitcloud/stackit-cli/internal/cmd	6.78% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/config/set	91.10% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/config/unset	35.07% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis	0.00% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials	0.00% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/create	58.18% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/delete	37.50% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/describe	56.82% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/list	58.82% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance	0.00% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/create	62.50% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/delete	26.83% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/describe	65.96% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/list	58.82% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/update	58.70% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/redis/plans	48.08% (ø)
github.com/stackitcloud/stackit-cli/internal/pkg/config	70.32% (ø)
github.com/stackitcloud/stackit-cli/internal/pkg/services/redis/client	0.00% (ø)
github.com/stackitcloud/stackit-cli/internal/pkg/services/redis/utils	32.00% (ø)

---

Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/stackitcloud/stackit-cli/internal/cmd/config/set/set.go	91.10% (ø)	146	133	13
github.com/stackitcloud/stackit-cli/internal/cmd/config/unset/unset.go	35.07% (ø)	134	47	87
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/create/create.go	58.18% (ø)	55	32	23
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/credentials.go	0.00% (ø)	7	0	7
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/delete/delete.go	37.50% (ø)	40	15	25
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/describe/describe.go	56.82% (ø)	44	25	19
github.com/stackitcloud/stackit-cli/internal/cmd/redis/credentials/list/list.go	58.82% (ø)	51	30	21
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/create/create.go	62.50% (ø)	96	60	36
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/delete/delete.go	26.83% (ø)	41	11	30
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/describe/describe.go	65.96% (ø)	47	31	16
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/instance.go	0.00% (ø)	8	0	8
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/list/list.go	58.82% (ø)	51	30	21
github.com/stackitcloud/stackit-cli/internal/cmd/redis/instance/update/update.go	58.70% (ø)	92	54	38
github.com/stackitcloud/stackit-cli/internal/cmd/redis/plans/plans.go	48.08% (ø)	52	25	27
github.com/stackitcloud/stackit-cli/internal/cmd/redis/redis.go	0.00% (ø)	6	0	6
github.com/stackitcloud/stackit-cli/internal/cmd/root.go	6.78% (ø)	118	8	110
github.com/stackitcloud/stackit-cli/internal/pkg/config/config.go	91.04% (ø)	67	61	6
github.com/stackitcloud/stackit-cli/internal/pkg/services/redis/client/client.go	0.00% (ø)	1	0	1
github.com/stackitcloud/stackit-cli/internal/pkg/services/redis/utils/utils.go	32.00% (ø)	25	8	17

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.