Fix spss script

Summary

• spss_to_datamodel script works again.
• Alias linkahead-crawler script.

Focus

Does it work? Are the tests OK?

Test Environment

Run unit tests, especially unittests/test_scripts.py

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• All automated tests pass
• Reference related issues
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• All automated tests pass
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• Appropriate user and developer documentation (or not necessary)
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unittests/test_scripts.py

+#!/usr/bin/env python3
+
+# This file is a part of the LinkAhead project.
+#
+# Copyright (C) 2024 IndiScale GmbH <www.indiscale.com>
+# Copyright (C) 2024 Daniel Hornung <d.hornung@indiscale.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+"""Test if the scripts work as expected.
+"""
+
+from subprocess import run
+
+SCRIPTS = [
+    "linkahead-crawler",
+    "caosdb-crawler",
+    "spss_to_datamodel",
+    "csv_to_datamodel",
+]
+
+
+def test_script_loading():
+    """Run the scripts with "-h"."""
+    for script in SCRIPTS:
+        run([script, "-h"], check=True)