[PATCH 3/3] cirrus.yml: Update the macOS jobs to Catalina

[Thomas Huth <thuth@redhat.com>]

When looking at the CI jobs on cirrus-ci.com, it seems like the mojave-based
images have been decomissioned a while ago already, since apparently all our
jobs get automatically upgraded to catalina. So let's update our YML script
accordingly to avoid confusion.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 .cirrus.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index bb25c1723b..b11aac53cb 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -18,7 +18,7 @@ freebsd_12_task:
 
 macos_task:
   osx_instance:
-    image: mojave-base
+    image: catalina-base
   install_script:
     - brew install pkg-config python gnu-sed glib pixman make sdl2 bash
   script:
@@ -32,7 +32,7 @@ macos_task:
 macos_xcode_task:
   osx_instance:
     # this is an alias for the latest Xcode
-    image: mojave-xcode
+    image: catalina-xcode
   install_script:
     - brew install pkg-config gnu-sed glib pixman make sdl2 bash
   script:
-- 
2.18.1