A new version of pylint was released on April 25
and it is breaking zuul jobs so submissions cannot merge.
Clamping pylint to be less than 2.5.0 for now.
Change-Id: Ibd62a5d67bf8f37119b612a274c2d472a3474859
Partial-Bug: 1875705
Signed-off-by: albailey <Al.Bailey@windriver.com>