Solve duplicated firewall rules

[nesitor]

Solve duplicated firewall rules when a VM is removed and re-allocated or when restart the service.

Related ClickUp, GitHub or Jira tickets : ALEPH-446

Self proofreading checklist

• The new code clear, easy to read and well commented.
• New code does not duplicate the functions of builtin or popular libraries.
• An LLM was used to review the new code and look for simplifications.
• New classes and functions contain docstrings explaining what they provide.
• All new code is covered by relevant tests.
• Documentation has been updated regarding these changes.
• Dependencies update in the project.toml have been mirrored in the Debian package build script packaging/Makefile

Changes

Ensure to force same int types for ports forwarded when searching and applying the firewall rules.

How to test

Create an instance, then un-allocate it and then re-allocate the ame instance or another one and use the command nft list ruleset to see the firewall rules. Only the proper rules should appear for every VM.

[codecov]

Codecov Report

❌ Patch coverage is 9.90991% with 100 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.11%. Comparing base (e2f64f0) to head (4372f97).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
src/aleph/vm/network/firewall.py	6.38%	44 Missing ⚠️
src/aleph/vm/orchestrator/views/__init__.py	6.38%	44 Missing ⚠️
src/aleph/vm/models.py	41.66%	6 Missing and 1 partial ⚠️
src/aleph/vm/pool.py	0.00%	4 Missing ⚠️
src/aleph/vm/network/port_availability_checker.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #849      +/-   ##
==========================================
- Coverage   64.76%   64.11%   -0.66%     
==========================================
  Files          88       88              
  Lines        8185     8281      +96     
  Branches      739      752      +13     
==========================================
+ Hits         5301     5309       +8     
- Misses       2652     2739      +87     
- Partials      232      233       +1     

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[1yam]

LGTM