feat: add elixir-provider

[JoE11-y]

Description

• Hello @thomaspoignant This resolves (feature) OpenFeature Elixir Provider #2493

Work to do:

• Testing
• Optimization to standard practices.

Pr adding elixir provider to the go-feature-flag

Closes issue(s)

Resolve #

Checklist

• I have tested this code
• I have added unit test to cover this code
• I have updated the documentation (README.md and /website/docs)
• I have followed the contributing guide

[netlify]

✅ Deploy Preview for go-feature-flag-doc-preview canceled.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.77%. Comparing base (f12c9a2) to head (9cdd2d6).
Report is 87 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2610      +/-   ##
==========================================
- Coverage   84.87%   84.77%   -0.11%     
==========================================
  Files         111      111              
  Lines        5178     5207      +29     
==========================================
+ Hits         4395     4414      +19     
- Misses        620      628       +8     
- Partials      163      165       +2     

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[thomaspoignant]

Hey @JoE11-y thanks a lot for this pull request, I am super excited to have support for Elixir 😄.

I haven't looked enough yet to be able to provide feedback, but I was wondering if you plan to add any tests for this PR?
Forget about it, I should have read the PR description.

I am really looking forward to complete this PR 🙌 .

[JoE11-y]

Thank you @thomaspoignant.

Will complete this by today's end 💪

[thomaspoignant]

Hey @JoE11-y do you still want to add the tests or should I look at it myself?

[JoE11-y]

Hey @JoE11-y do you still want to add the tests or should I look at it myself?

Apologies for the delay, got sidetracked.
I've started adding them now.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud