tests/storage/linstor: Added `test_linstor_sr_expand_host` and `test_linstor_sr_expand_disk` to test expand Linstor SR#282

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rushikeshjadhav wants to merge 6 commits intoxcp-ng:masterfrom

rushikeshjadhav:feat-storage-linstor-612

Commits on May 16, 2025

Added `raw_disk_is_available()` using `blkid` for reliable raw disk checks.
rushikeshjadhav
committed
tests/storage/linstor: Added `--expansion-sr-disk` pytest option for specifying or auto-detecting Linstor SR expansion disks.
rushikeshjadhav
committed