fix(deps): update stackit sdk modules

[stackit-pipeline]

This PR contains the following updates:

Package	Type	Update	Change
github.com/stackitcloud/stackit-sdk-go/core	require	minor	v0.15.1 -> v0.16.0
github.com/stackitcloud/stackit-sdk-go/services/authorization	require	minor	v0.5.1 -> v0.6.0
github.com/stackitcloud/stackit-sdk-go/services/dns	require	minor	v0.12.1 -> v0.13.0
github.com/stackitcloud/stackit-sdk-go/services/iaas	require	minor	v0.19.0 -> v0.20.0
github.com/stackitcloud/stackit-sdk-go/services/loadbalancer	require	minor	v0.17.0 -> v0.18.0
github.com/stackitcloud/stackit-sdk-go/services/logme	require	minor	v0.20.2 -> v0.21.0
github.com/stackitcloud/stackit-sdk-go/services/mariadb	require	minor	v0.20.1 -> v0.21.0
github.com/stackitcloud/stackit-sdk-go/services/mongodbflex	require	minor	v0.17.0 -> v0.18.0
github.com/stackitcloud/stackit-sdk-go/services/objectstorage	require	minor	v1.0.0 -> v1.1.0
github.com/stackitcloud/stackit-sdk-go/services/observability	require	minor	v0.2.1 -> v0.3.0
github.com/stackitcloud/stackit-sdk-go/services/opensearch	require	minor	v0.19.1 -> v0.20.0
github.com/stackitcloud/stackit-sdk-go/services/postgresflex	require	minor	v0.17.0 -> v0.18.0
github.com/stackitcloud/stackit-sdk-go/services/rabbitmq	require	minor	v0.20.1 -> v0.21.0
github.com/stackitcloud/stackit-sdk-go/services/redis	require	minor	v0.20.1 -> v0.21.0
github.com/stackitcloud/stackit-sdk-go/services/resourcemanager	require	minor	v0.12.0 -> v0.13.0
github.com/stackitcloud/stackit-sdk-go/services/runcommand	require	minor	v0.2.1 -> v0.3.0
github.com/stackitcloud/stackit-sdk-go/services/secretsmanager	require	minor	v0.10.1 -> v0.11.0
github.com/stackitcloud/stackit-sdk-go/services/serverbackup	require	minor	v0.5.0 -> v0.6.0
github.com/stackitcloud/stackit-sdk-go/services/serverupdate	require	minor	v0.4.0 -> v0.5.0
github.com/stackitcloud/stackit-sdk-go/services/serviceaccount	require	minor	v0.5.0 -> v0.6.0
github.com/stackitcloud/stackit-sdk-go/services/serviceenablement	require	minor	v0.4.0 -> v0.5.0
github.com/stackitcloud/stackit-sdk-go/services/ske	require	minor	v0.21.1 -> v0.22.0
github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex	require	minor	v0.9.0 -> v0.10.0

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