[glib/wip/pwithnall/macos-ci] ci: Bump Meson version to 0.60.1 on macOS

[Philip Withnall <pwithnall src gnome org>]

commit d1fc42eb8818505326cbe0ce7ec8fb7add8be078
Author: Philip Withnall <pwithnall endlessos org>
Date:   Tue Nov 16 13:29:15 2021 +0000

    ci: Bump Meson version to 0.60.1 on macOS
    
    This is an attempt to fix a persistent error on the macOS CI:
    ```
    Objective-C compiler for the host machine: cc (clang 10.0.0)
    Objective-C linker for the host machine: APPLE ld 409.12
    WARNING: No include directory found parsing "cc -xobjc -E -v -" output
    meson.build:761:2: ERROR: Fatal warnings enabled, aborting
    ```
    
    For example, seen on https://gitlab.gnome.org/GNOME/glib/-/jobs/1618966.
    
    Signed-off-by: Philip Withnall <pwithnall endlessos org>

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8e81ce3d9..df16fa06e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -432,7 +432,7 @@ macos:
   needs: []
   before_script:
     - bash .gitlab-ci/show-execution-environment.sh
-    - pip3 install --user meson==0.52.0
+    - pip3 install --user meson==0.60.1
     - pip3 install --user ninja
     - export PATH=/Users/gitlabrunner/Library/Python/3.7/bin:$PATH
   script: