Add stale bot

[juancarlospaco]

What kind of change does this PR introduce?

• Add stale bot to mark issues and PRs as Stale after a long period of inactivity.
• Currently, it does NOT close issues automatically, but it can do so if wanted.
• Same yaml as Add stale bot supabase-py#774

Additional context

• https://github.com/actions/stale

[sourcery-ai]

Hey @juancarlospaco - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟡 General issues: 2 issues found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good

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[sourcery-ai]

suggestion (code_refinement): Setting 'days-before-pr-close' to -1 may prevent PRs from ever being closed.

Consider setting a positive number of days or a clear policy for closing stale PRs to ensure the repository remains clean and manageable.

Suggested change

	days-before-pr-close: -1
	days-before-pr-close: 30

[sourcery-ai]

suggestion (code_refinement): Setting 'days-before-issue-close' to -1 may prevent issues from ever being closed.

It's generally a good practice to have a mechanism to close issues automatically after they become stale to keep the issue tracker clean and focused.

Suggested change

	days-before-issue-close: -1
	days-before-issue-close: 30

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 44.71%. Comparing base (63e028d) to head (87b27b6).
Report is 67 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #484   +/-   ##
=======================================
  Coverage   44.71%   44.71%           
=======================================
  Files          23       23           
  Lines        2044     2044           
=======================================
  Hits          914      914           
  Misses       1130     1130           

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[J0]

Thanks