main/ncurses: upgrade to 6.1_p20191012

upstream bugfix release
change url to https://invisible-island.net/ncurses/ because this is
development site and up to date with informations about ncurses
6 jobs for !457 with ncurses-6.1-20191012 in 1 minute and 48 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
failed #5838
x86_64 docker-alpine allowed to fail
lint

00:00:18

failed #3937
docker-alpine x86_64 allowed to fail
lint

00:00:09

 
  Build
passed #3941
docker-alpine ci-build aarch64
build-aarch64

00:01:28

passed #3940
docker-alpine ci-build ppc64le
build-ppc64le

00:01:10

passed #3939
docker-alpine ci-build x86
build-x86

00:01:28

passed #3938
docker-alpine ci-build x86_64
build-x86_64

00:01:25

 
Name Stage Failure
failed
lint Lint
No job log