Support Python 3.13

[b-yogesh]

Update environment.yml and pyproject.toml to support py 3.13

Closes: #103

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.64%. Comparing base (53ae761) to head (71f60a4).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #116      +/-   ##
==========================================
+ Coverage   92.62%   92.64%   +0.01%     
==========================================
  Files          85       85              
  Lines        1478     1481       +3     
  Branches      222      222              
==========================================
+ Hits         1369     1372       +3     
  Misses         91       91              
  Partials       18       18              

Flag	Coverage Δ
backend	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.