feat: Publishing offchain future assets

[akhercha]

Added

• new linters: ruff + mypy for types

Changed

• publish_data to offchain future entries

Removed

• old linters installations & rules

---

Currently, mypy ignore every source files (see pyproject.toml), an issue will be created to slowly fix them all (there is ~700 atm).
See #116

[codecov]

Codecov Report

Attention: Patch coverage is 30.00000% with 133 lines in your changes missing coverage. Please review.

Project coverage is 38.39%. Comparing base (bd6ffb7) to head (53aaa79).
Report is 1 commits behind head on master.

❗ Current head 53aaa79 differs from pull request most recent head 56e8418

Please upload reports for the commit 56e8418 to get more accurate results.

Files	Patch %	Lines
pragma/publisher/client.py	22.85%	27 Missing ⚠️
pragma/publisher/fetchers/propeller.py	13.33%	13 Missing ⚠️
pragma/core/randomness/randomness_utils.py	30.76%	9 Missing ⚠️
pragma/publisher/fetchers/thegraph.py	20.00%	8 Missing ⚠️
pragma/core/entry.py	60.00%	6 Missing ⚠️
pragma/publisher/fetchers/starknetamm.py	14.28%	6 Missing ⚠️
pragma/publisher/signer.py	45.45%	6 Missing ⚠️
pragma/core/mixins/oracle.py	0.00%	5 Missing ⚠️
pragma/core/mixins/randomness.py	0.00%	5 Missing ⚠️
pragma/publisher/fetchers/coingecko.py	28.57%	5 Missing ⚠️
... and 23 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #109      +/-   ##
==========================================
- Coverage   41.38%   38.39%   -3.00%     
==========================================
  Files          46       45       -1     
  Lines        2931     2873      -58     
==========================================
- Hits         1213     1103     -110     
- Misses       1718     1770      +52     

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[EvolveArt]

Please also add some tests for the new perp fetcher.