[PATCH] GitHub CI: macos-13 images are no more

[Junio C Hamano <gitster@pobox.com>]

As this image was deprecated on Sep 22nd, and will be dropped on Dec
4th, replace these jobs to use macos-14 images instead.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

 * This is a monkey-see-monkey-do patch.  There may be additional
   adjustment necessary (versions of tools available on the system
   may be different, for example).

 .github/workflows/main.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index aa6bce673b..f2af90ad31 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -313,16 +313,16 @@ jobs:
         vector:
           - jobname: osx-clang
             cc: clang
-            pool: macos-13
+            pool: macos-14
           - jobname: osx-reftable
             cc: clang
-            pool: macos-13
+            pool: macos-14
           - jobname: osx-gcc
             cc: gcc-13
-            pool: macos-13
+            pool: macos-14
           - jobname: osx-meson
             cc: clang
-            pool: macos-13
+            pool: macos-14
     env:
       CC: ${{matrix.vector.cc}}
       CC_PACKAGE: ${{matrix.vector.cc_package}}
-- 
2.52.0-rc0-105-gc08128fbb6