Fix container pip install for Singularity (follow-up to #4380) (#4438)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: esutlie

src/spikeinterface/sorters/container_tools.py

@@ -238,7 +238,14 @@ def install_package_in_container(
         pkg = package_name
         if extra is not None:
             pkg += extra
-        cmd = f'pip install --user --upgrade --no-input "{pkg} @ {github_url}/archive/{tag_or_version}.tar.gz"'
+        cmd = [
+            "pip",
+            "install",
+            "--user",
+            "--upgrade",
+            "--no-input",
+            f"{pkg} @ {github_url}/archive/{tag_or_version}.tar.gz",
+        ]
         res_output = container_client.run_command(cmd)
 
     elif installation_mode == "folder":