testing/py3-praw: upgrade to 6.4.0

5 jobs for !146 with py3-praw in 2 minutes and 51 seconds (queued for 3 seconds)
detached
Status Job ID Name Coverage
  Lint
passed #1233
docker-alpine x86_64
lint

00:00:19

 
  Build
passed #1237
docker-alpine ci-build ppc64le
build-ppc64le

00:01:32

passed #1236
docker-alpine ci-build s390x
build-s390x

00:00:59

passed #1235
docker-alpine ci-build x86
build-x86

00:01:30

passed #1234
docker-alpine ci-build x86_64
build-x86_64

00:01:18