bootstrap: Cope with case changes in CentOS 8 repo names

RN: Be more flexible with repository names in CentOS 8 test environments

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14594
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(backported from commit 1c59f49a)
51 jobs for martins/v4-12-test in 141 minutes and 37 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Images
passed #914063019
gce docker
centos7

00:51:55

passed #914063015
gce docker
centos8

01:03:20

passed #914063002
gce docker
debian10

00:46:11

passed #914063005
gce docker
debian9

00:40:13

passed #914063013
gce docker
fedora29

00:42:01

passed #914063011
gce docker
fedora30

00:45:30

passed #914063008
gce docker
fedora31

00:43:29

passed #914063021
gce docker
opensuse150

00:59:46

passed #914063023
gce docker
opensuse151

01:03:09

passed #914063000
gce docker
ubuntu1604

00:45:38

passed #914062998
gce docker
ubuntu1804

00:43:24

 
  Build
passed #914063074
shared docker
centos7-samba-o3

00:35:13

passed #914063076
shared docker
centos8-samba-o3

00:33:02

passed #914063043
shared docker
ctdb

00:40:27

passed #914063069
shared docker
debian10-samba-o3

00:32:08

passed #914063067
shared docker
debian9-samba-o3

00:32:06

passed #914063078
shared docker
fedora29-samba-o3

00:32:59

passed #914063080
shared docker
fedora30-samba-o3

00:33:28

passed #914063082
shared docker
fedora31-samba-o3

00:32:56

passed #914063070
shared docker
opensuse150-samba-o3

00:37:22

passed #914063072
shared docker
opensuse151-samba-o3

00:39:04

passed #914063025
shared docker
others

00:14:15

passed #914063026
shared docker
samba

00:22:45

passed #914063057
samba-ci-private docker
samba-ad-dc-1

00:39:39

passed #914063062
samba-ci-private docker
samba-ad-dc-1-mitkrb5

00:31:49

passed #914063033
shared docker
samba-ad-dc-2

01:03:25

passed #914063034
shared docker
samba-ad-dc-3

00:37:38

passed #914063035
shared docker
samba-ad-dc-4

01:18:11

passed #914063048
shared docker
samba-ad-dc-4-mitkrb5

01:00:45

passed #914063036
shared docker
samba-ad-dc-5

00:41:45

passed #914063037
shared docker
samba-ad-dc-6

00:35:17

passed #914063050
samba-ci-private docker
samba-ad-dc-backup

00:44:02

passed #914063045
shared docker
samba-ad-dc-ntvfs

00:51:00

passed #914063032
shared docker
samba-admem

00:21:14

passed #914063046
shared docker
samba-admem-mit

00:25:15

passed #914063044
shared docker
samba-ctdb

00:21:09

passed #914063054
samba-ci-private docker
samba-fileserver

00:22:51

passed #914063042
shared docker
samba-fuzz

00:17:06

passed #914063056
samba-ci-private docker
samba-ktest-heimdal

00:12:58

passed #914063039
shared docker
samba-libs

00:33:39

passed #914063027
shared docker
samba-mitkrb5

00:16:18

passed #914063028
shared docker
samba-none-env

01:00:02

passed #914063029
shared docker
samba-nopython

00:42:09

passed #914063030
shared docker
samba-nopython-py2

00:35:34

passed #914063059
samba-ci-private docker
samba-nt4

00:51:54

passed #914063061
samba-ci-private docker
samba-schemaupgrade

00:25:39

passed #914063052
samba-ci-private docker
samba-simpleserver

00:16:17

passed #914063041
shared docker
samba-static

00:46:33

passed #914063031
shared docker
samba-xc

00:11:51

passed #914063065
shared docker
ubuntu1604-samba-o3

00:33:09

passed #914063064
shared docker
ubuntu1804-samba-o3

00:31:51