Revert "feat(liccheck): Update to use pyproject.toml"

This reverts commit e9b838c

Author: Dominik Falkner

{{ cookiecutter.__package_name_kebab_case }}/pyproject.toml

@@ -56,7 +56,16 @@ _check_format = "black --check ."
 _check_sort_imports = "isort --check ."
 _check_lint = "ruff check ."
 
-check_licenses = "liccheck -s pyproject.toml"
+# if you are using poetry for dependency management, you have to generate a requirements.txt first
+_convert_to_req_txt = { shell = "poetry export --without-hashes --format=requirements.txt > requirements.txt" }
+# check authorization of the licenses of dependencies as defined in [tool.liccheck] section 
+# (or a separate liccheck.ini-file)
+_check_licenses = "liccheck -s liccheck.ini -r requirements.txt"
+
+check_licenses = [
+    "_convert_to_req_txt",
+    "_check_licenses",
+]
 
 docs = "mkdocs serve"
 precommit = ["_format", "_sort_imports", "_lint"]