testing/racket: upgrade to 7.7

7 jobs for !7773 with racket in 21 minutes and 46 seconds
latest detached
Status Job ID Name Coverage
  Lint
passed #113876
docker-alpine x86_64
lint

00:00:26

 
  Build
passed #113881
docker-alpine ci-build aarch64
build-aarch64

00:17:59

passed #113882
docker-alpine ci-build armv7
build-armv7

00:00:30

passed #113880
docker-alpine ci-build ppc64le
build-ppc64le

00:21:17

passed #113879
docker-alpine ci-build s390x
build-s390x

00:10:44

passed #113878
docker-alpine ci-build x86
build-x86

00:04:10

passed #113877
docker-alpine ci-build x86_64
build-x86_64

00:03:31