testing/py3-cassandra-driver: upgrade to 3.20.2

7 jobs for !1756 with py3-cassandra-driver in 13 minutes and 38 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
passed #18687
docker-alpine x86_64
lint

00:00:24

 
  Build
passed #18692
docker-alpine ci-build aarch64
build-aarch64

00:12:42

passed #18693
docker-alpine ci-build armv7
build-armv7

00:09:50

passed #18691
docker-alpine ci-build ppc64le
build-ppc64le

00:05:51

passed #18690
docker-alpine ci-build s390x
build-s390x

00:00:29

passed #18689
docker-alpine ci-build x86
build-x86

00:06:56

passed #18688
docker-alpine ci-build x86_64
build-x86_64

00:04:29