log.warn() -> log.warning()

[sbernhard]

Addendum for 82ec2fe

[github-actions]

Coverage (computed on Fedora latest) •

File	Stmts	Miss	Cover	Missing
rhsm
repofile.py	492	172	65%	36–37, 41–42, 55, 69–70, 156–157, 180–184, 192, 238, 246, 282–288, 290, 293, 302–307, 385, 395–396, 414, 450–455, 458–465, 483–485, 487, 490, 499–501, 505–506, 536–537, 539, 543, 550–551, 567–570, 617–618, 620–623, 630, 638, 645, 655–656, 678–679, 681–682, 692–693, 698, 703–706, 718–722, 726–727, 729, 734–745, 747–756, 758–764, 768–769, 772–773, 776–777, 780–781, 783, 786–787, 789, 791–793, 795–797, 799, 801–813, 815, 818, 820, 823–825, 827–829, 835, 837
TOTAL	17519	4511	74%

Tests	Skipped	Failures	Errors	Time
2416	14 💤	0 ❌	0 🔥	32.253s ⏱️