ACS: all versions and old releases

- Add CLI support for IPv6 federated search ip-allowlist management

- Bump github.com/getkin/kin-openapi to v0.144.0 (maintenance/dependency update).

- Fix acs login failing for non-admin users — GET /status (DescribeStack) is no longer gated on admin/sc_admin role, allowing any authenticated user to complete the login flow and populate stack type.

- Added Azure as a supported cloud provider for Dynamic Data Self Storage (DDSS).
- Added Azure as a supported cloud provider for Dynamic Data: Active Archive (DDAA).
- Added acs indexes self-storage-locations get-azure-consent-url subcommand.
- Added acs indexes self-storage-locations get-azure-service-principal subcommand.
- Added --tenant-id and --storage-account-resource-id flags to acs indexes self-storage-locations create for Azure self-storage location creation.

- Added arm64 support for darwin and linux CLI releases.
- Minor fixes.

- Added support for mdlIndex flag for index creation, supported by the create, list and describe commands.
- The new acs maintenance-windows preferences list-available-windows subcommand adds support for listing available maintenance windows that can be chosen as preferred time and day of week.

- Added support for metadata on HEC tokens by adding --_meta flag on the non-bulk commands and the _meta field for bulk commands.

- The new acs feature for ip-allowlist command and corresponding sub commands adds support for listing, creating and deleting acs allowlist

- Added support for the Targeted App Installation feature by adding --scope=local parameter to app install and uninstall commands for private and Splunkbase apps.

- Add o11y-realm as an optional parameter to acs observability enable-centralized-rbac, acs observability pair and acs observability pairing-status-by-id commands.

- The new acs ip-allowlist-v6 describe subcommand adds support to list the ipv6 subnets for a specific allowlist feature.
- The new acs ip-allowlist-v6 create subcommand adds support to create the ipv6 subnets for a specific allowlist feature.
- The new acs ip-allowlist-v6 delete subcommand adds support to delete the ipv6 subnets for a specific allowlist feature.
- The new acs outbound-port-v6 describe subcommand adds support to list the allowed ipv6 subnets for a given outbound port.
- The new acs outbound-port-v6 list subcommand adds support to list all ipv6 subnets for all outbound ports.
- The new acs outbound-port-v6 create subcommand adds support to create the ipv6 subnets for a given outbound port.
- The new acs outbound-port-v6 delete subcommand adds support to delete the ipv6 subnets for a given outbound port.

- The new acs apps export subcommand adds support for taking a snapshot of apps for backup purposes.
- The new acs observability enable-capabilities subcommand adds support for enabling observability roles on splunk cloud.
- The new acs observability enable-centralized-rbac subcommand enables Splunk Cloud RBAC on observability cloud.
- The new acs maintenance-windows preferences subcommand adds support for viewing and updating change freezes affecting a stack.

- Added the --use-stack-token flag to the acs token create command to create new tokens using cached stack JWT.
- Deprecated --stack-type flag for configuring new stack (will continue to function for backward-compatibility)
- Stack type (Victoria/Classic) are populated automatically upon login/setup.
- Bug fixes