fix: Use blkid instead of lsblk in tests to get partition table

[vojtechtrefny]

Older versions of lsblk cannot print the PTTYPE column.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.73%. Comparing base (59fd1c6) to head (024212b).
Report is 1 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (59fd1c6) and HEAD (024212b). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (59fd1c6)	HEAD (024212b)
sanity	1	0

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #480      +/-   ##
==========================================
- Coverage   16.54%   10.73%   -5.81%     
==========================================
  Files           2        8       +6     
  Lines         284     1946    +1662     
  Branches       79        0      -79     
==========================================
+ Hits           47      209     +162     
- Misses        237     1737    +1500     

Flag	Coverage Δ
sanity	?

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[spetrosi]

[citest]

[vojtechtrefny]

[citest]

[richm]

Works locally with: ansible 2.9/centos-7, ansible 2.16/centos-8, ansible 2.17/centos-10

[richm]

The stratis failure on el8 is known and will be fixed in a subsequent PR