Update version to 19.1.0-rc5

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
11 jobs for 19.1 in 8 minutes and 52 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Containers Build
passed #339924
debian

00:00:27

 
  Build+Test
passed #339926
meson-clang

00:08:24

passed #339929
meson-clover-llvm

00:03:41

passed #339930
meson-clover-llvm39

00:03:38

passed #339928
meson-main

00:05:52

passed #339925
meson-swr-glvnd

00:07:22

passed #339927
meson-vulkan

00:02:46

passed #339932
scons-llvm

00:04:04

passed #339931
scons-nollvm

00:03:57

passed #339933
scons-swr

00:06:11

passed #339934
scons-win64

00:06:44