pyagl: update SRCREV

pyagl: update SRCREV

Update SRCREV in pyagl recipe to pick up:

50083ae Support specifying CAN interface for tests

Bug-AGL: SPEC-3756

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ia2f55d19ee174ff6c9252d48e2b5a458d23b9030
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/25909
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>