[bot] Update release-v1.15.x from tektoncd/cli:release-v0.37.6 to d6b0e56

    $ git diff --stat d6b0e56..5815a13
     OWNERS | 10 ++--------
     1 file changed, 2 insertions(+), 8 deletions(-)

https://github.com/tektoncd/cli/compare/d6b0e56efb52329a31e3428cd4f67bb09582c71e..5815a1389a0a939fd022d16fac6e5b7413c45af9

Author: openshift-pipelines-bot