Add apptainer case to 'has_singularity()'

Co-authored-by: Alessio Buccino <[email protected]>

src/spikeinterface/sorters/utils/misc.py

@@ -96,7 +96,7 @@ def has_docker():
 
 
 def has_singularity():
-    return _run_subprocess_silently("singularity --version").returncode == 0
+    return _run_subprocess_silently("singularity --version").returncode == 0 or _run_subprocess_silently("apptainer --version").returncode == 0
 
 
 def has_docker_nvidia_installed():