A new version of pylint was released on April 27 and it is
breaking zuul jobs so submissions cannot merge.
Clamping pylint to be less than 2.5.0 for now.
Change-Id: I77464800aa4ec5b94e10a5e9fbaeb0ddbd2e7845
Partial-Bug: 1875705
Signed-off-by: albailey <Al.Bailey@windriver.com>