This update for google-cloud-sap-agent fixes the following issue:

Update to google-cloud-sap-agent 3.12 (bsc#1259816):

- CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2: path pseudo-
  header (bsc#1260265).

Changes for google-cloud-sap-agent:

 * Collect WLM metric `saphanasr_angi_installed` for all OS types.
 * Failure handling: Remove attached disks from CG
 * OTE Status checks for Parameter Manager (SAP Agent)
 * Log command-line arguments in configureinstance.
 * Minor multiple reliability checks and fixes
 * Support custom names for restored disks in hanadiskrestore
 * Add newAttachedDisks to Restorer and detach them on restore failure.
 * Improve unit test coverage for hanadiskbackup and hanadiskrestore
 * Add support for refresh point tests.
 * Refactor HANA disk backup user validation and physical path parsing.
 * Auto updated compiled protocol buffers
 * Parameter Manager integration to SAP Agent
 * Modify collection logic for SAP HANA configuration files.
 * Update workloadagentplatform version and hash.
 * Update WLM Validation metrics to support SAPHanaSR-angi setups.
 * Increment agent version to 3.12.
 * SAP HANA Pacemaker failover settings can come from `SAPHanaController`.
 * Update collection for WLM metric `ha_sr_hook_configured`.
 * Refactor CheckTopology to accept instance number.
 * Use constant backoff with max retries for snapshot group operations.
 * Update workloadagentplatform dependency