Skip faketime tests on macOS (#2154)

This PR fixes the issue we are experiencing with macOS 13 runners when running tests that require faketime (invalid instruction error). Disable faketime tests on macOS until this can be resolved.

Log: https://gist.github.com/kounelisagis/d88c23c65e1198556f0493e45c357e4c

[sc-63017]

.github/workflows/ci.yml

@@ -22,8 +22,7 @@ jobs:
         os:
           - ubuntu-latest
           - macos-13
-          # libfaketime tests fail on macos arm. Disable tests for now.
-          # - macos-14
+          - macos-14
           - windows-latest
         python-version: [ "3.9", "3.10", "3.11", "3.12", "3.13" ]
       fail-fast: false
@@ -66,8 +65,8 @@ jobs:
         run: brew install pkg-config
         if: startsWith(matrix.os, 'macos')
 
-      - name: "Install libfaketime (linux and macOS)"
-        if: ${{ ! startsWith(matrix.os, 'windows') }}
+      - name: "Install libfaketime (Linux only)"
+        if: ${{ startsWith(matrix.os, 'ubuntu') }}
         run: |
           git clone https://github.com/wolfcw/libfaketime/
           cd libfaketime

tiledb/tests/test_timestamp_overrides.py

@@ -20,8 +20,8 @@ def has_libfaketime():
 
 
 @pytest.mark.skipif(
-    sys.platform == "win32" or not has_libfaketime(),
-    reason=f"libfaketime not installed. {'Not supported on Windows.' if sys.platform == 'win32' else ''}",
+    sys.platform != "linux2" or not has_libfaketime(),
+    reason=f"This test is only supported on Linux with libfaketime installed.",
 )
 class TestTimestampOverrides(DiskTestCase):
     def test_timestamp_overrides(self):