Add support for Python 3.13

[RohitBhati8269]

eventlet library not supporting Python 3.13, Due to that we are getting the below error:-

Traceback (most recent call last): File "/Users/runner/work/pgadmin4/pgadmin4/web/regression/runtests.py", line 111, in <module> from pgAdmin4 import app File "/Users/runner/work/pgadmin4/pgadmin4/web/pgAdmin4.py", line 103, in <module> app = create_app() File "/Users/runner/work/pgadmin4/pgadmin4/web/pgadmin/__init__.py", line 754, in create_app app.register_blueprint(module) ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^ File "/Users/runner/work/pgadmin4/pgadmin4/venv/lib/python3.13/site-packages/flask/sansio/scaffold.py", line 47, in wrapper_func return f(self, *args, **kwargs) File "/Users/runner/work/pgadmin4/pgadmin4/venv/lib/python3.13/site-packages/flask/sansio/app.py", line 595, in register_blueprint blueprint.register(self, options) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^ File "/Users/runner/work/pgadmin4/pgadmin4/web/pgadmin/tools/__init__.py", line 52, in register from .psql import blueprint as module File "/Users/runner/work/pgadmin4/pgadmin4/web/pgadmin/tools/psql/__init__.py", line 15, in <module> from eventlet.green import subprocess File "/Users/runner/work/pgadmin4/pgadmin4/venv/lib/python3.13/site-packages/eventlet/green/subprocess.py", line [8](https://github.com/pgadmin-org/pgadmin4/actions/runs/11514380919/job/32052886297?pr=8067#step:17:9), in <module> from eventlet.green import select, threading, time File "/Users/runner/work/pgadmin4/pgadmin4/venv/lib/python3.13/site-packages/eventlet/green/threading.py", line 18, in <module> eventlet.patcher.inject( ~~~~~~~~~~~~~~~~~~~~~~~^ 'threading', ^^^^^^^^^^^^ globals(), ^^^^^^^^^^ ('_thread', thread), ^^^^^^^^^^^^^^^^^^^^ ('time', time)) ^^^^^^^^^^^^^^^ File "/Users/runner/work/pgadmin4/pgadmin4/venv/lib/python3.13/site-packages/eventlet/patcher.py", line 10[9](https://github.com/pgadmin-org/pgadmin4/actions/runs/11514380919/job/32052886297?pr=8067#step:17:10), in inject module = __import__(module_name, {}, {}, module_name.split('.')[:-1]) File "/opt/homebrew/Cellar/[email protected]/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/threading.py", line 35, in <module> _start_joinable_thread = _thread.start_joinable_thread ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: module 'eventlet.green.thread' has no attribute 'start_joinable_thread'

Python 3.7-3.12 are currently supported by eventlet.
Reference :- https://pypi.org/project/eventlet/

[khushboovashi]

Upstream issue link: eventlet/eventlet#964