Add requirements.txt

This commit is not suitable for upstreaming because it is SeaGL-
specific. The upstream bug to fix in a general way (which will also
work for dev environments, etc.) is pretalx#1747.

requirements.txt was generated with:

pip3 install --upgrade-strategy=eager -Ue ".[postgres, redis]" gunicorn
pip3 freeze | grep -v pretalx.git > requirements.txt

I also happen to have pip-tools in the venv and pip-sync does not
remove itself. Who cares.

Author: strugee

requirements.txt

@@ -0,0 +1,81 @@
+amqp==5.3.1
+argon2-cffi==25.1.0
+argon2-cffi-bindings==21.2.0
+asgiref==3.9.1
+attrs==25.3.0
+beautifulsoup4==4.13.4
+billiard==4.2.1
+bleach==6.2.0
+celery==5.5.3
+certifi==2025.6.15
+cffi==1.17.1
+charset-normalizer==3.4.2
+click==8.2.1
+click-didyoumean==0.3.1
+click-plugins==1.1.1.2
+click-repl==0.3.0
+css-inline==0.14.6
+csscompressor==0.9.5
+cssutils==2.11.1
+defusedcsv==2.0.0
+defusedxml==0.7.1
+Django==5.1.11
+django-appconf==1.1.0
+django-compressor==4.5.1
+django-countries==7.6.1
+django-filter==25.1
+django-formset-js-improved==0.5.0.3
+django-formtools==2.5.1
+django-hierarkey==1.2.1
+django-i18nfield==1.10.2
+django-jquery-js==3.1.1
+django-libsass==0.9
+django-scopes==2.0.0
+django_context_decorator==1.6.1
+django_csp==3.8
+djangorestframework==3.16.0
+drf-flex-fields==1.0.2
+drf-spectacular==0.28.0
+gunicorn==23.0.0
+idna==3.10
+inflection==0.5.1
+jsonschema==4.24.0
+jsonschema-specifications==2025.4.1
+kombu==5.5.4
+libsass==0.23.0
+lxml==6.0.0
+Markdown==3.8.2
+more-itertools==10.7.0
+packaging==25.0
+pillow==11.2.1
+prompt_toolkit==3.0.51
+psycopg2-binary==2.9.10
+publicsuffixlist==1.0.2.20250708
+pycparser==2.22
+python-dateutil==2.9.0.post0
+pytz==2025.2
+PyYAML==6.0.2
+qrcode==8.2
+rcssmin==1.1.2
+redis==5.2.1
+referencing==0.36.2
+reportlab==4.4.2
+requests==2.32.4
+rjsmin==1.2.2
+rpds-py==0.26.0
+rules==3.5
+setuptools==80.9.0
+six==1.17.0
+soupsieve==2.7
+sqlparse==0.5.3
+typing_extensions==4.14.1
+tzdata==2025.2
+uritemplate==4.2.0
+urllib3==2.5.0
+urlman==2.0.2
+vine==5.1.0
+vobject==0.9.9
+wcwidth==0.2.13
+webencodings==0.5.1
+whitenoise==6.9.0
+zxcvbn==4.5.0