Fix: Estimated cost based on TX and not hardcoded value

[1yam]

This PR mostly simplify the logic on instance delete using error hadnling change in PR

Related ClickUp, GitHub or Jira tickets : ALEPH-496

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.

Changes

This pull request includes updates to dependencies and error handling improvements in the delete function. The most important changes are listed below:

Dependency Updates:

• Updated the aleph-sdk-python dependency to a specific branch 1yam-fix-estimated-gas in pyproject.toml. (This need to be revert since it depends on it)

Error Handling Improvements:

• Removed a redundant safety check for account transactions and added specific error handling for InsufficientFundsError in the delete function in src/aleph_client/commands/instance/__init__.py.

How to test

Explain how to test your PR.
This PR can be tested by using empty wallet with not enough gas / aleph otken

Notes

No change is made on instance create for UX reason we keep the pre check early.

[codecov]

Codecov Report

Attention: Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.

Project coverage is 61.20%. Comparing base (671ea0e) to head (3548b53).

Files with missing lines	Patch %	Lines
src/aleph_client/commands/instance/__init__.py	28.57%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #359      +/-   ##
==========================================
- Coverage   61.32%   61.20%   -0.12%     
==========================================
  Files          18       18              
  Lines        3206     3207       +1     
  Branches      452      452              
==========================================
- Hits         1966     1963       -3     
- Misses       1001     1004       +3     
- Partials      239      240       +1     

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