DEVOPS-1065: configure auto-versioning in local conda recipes

[RomFloreani]

DEVOPS-1065 - configure auto-versioning in local conda recipes

[Copilot]

Pull request overview

Updates the project’s conda recipe/versioning flow to derive the conda package version from an auto-generated _version.json, aligning conda builds with poetry-dynamic-versioning outputs.

Changes:

• Switch conda recipe.yaml to load the package version from _version.json instead of a hardcoded placeholder.
• Reconfigure poetry-dynamic-versioning substitution to target _version.json (and update initial placeholder content).
• Enable build-experimental in the dev conda publish GitHub workflow.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
recipe.yaml	Loads conda recipe version from _version.json via load_from_file(...).
pyproject.toml	Redirects dynamic version substitution to _version.json and updates initial version placeholders.
.github/workflows/python_deploy_dev.yml	Passes build-experimental: true to the reusable conda publish workflow.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.93%. Comparing base (b53c653) to head (1e70438).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #125      +/-   ##
===========================================
+ Coverage    92.83%   92.93%   +0.10%     
===========================================
  Files           27       27              
  Lines         1507     1501       -6     
===========================================
- Hits          1399     1395       -4     
+ Misses         108      106       -2     

Files with missing lines	Coverage Δ
tests/version_test.py	81.39% <100.00%> (+1.80%)	⬆️

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