Fix regex to search images in OpenNebula

[Korulag]

No description provided.

[github-actions]

Coverage report for changed files •

File	Stmts	Miss	Cover	Missing
worker/runners
opennebula.py	115	90	21%	49, 61–63, 71–74, 84–85, 87, 89–93, 98–103, 105–106, 110, 115–119, 123–125, 130, 135–146, 151–153, 162, 168–170, 186–187, 196–197, 199–207, 211, 213–217, 222–226, 229–231, 236, 245, 251–258
TOTAL	2440	1517	37%

Tests	Skipped	Failures	Errors	Time
33	0 💤	0 ❌	0 🔥	22.617s ⏱️