fix: Update using-openfeature.md - Corrected name of image in dockerhub

[mgrand-kubra]

Corrected name of image in dockerhub

Description

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 ready!

Name	Link
🔨 Latest commit	73cf169
🔍 Latest deploy log	https://app.netlify.com/sites/go-feature-flag-doc-preview/deploys/66689bee26bab900080019a5
😎 Deploy Preview	https://deploy-preview-1976--go-feature-flag-doc-preview.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[thomaspoignant]

Good catch 👍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.81%. Comparing base (7e336a8) to head (73cf169).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1976   +/-   ##
=======================================
  Coverage   86.81%   86.81%           
=======================================
  Files          98       98           
  Lines        3526     3526           
=======================================
  Hits         3061     3061           
  Misses        357      357           
  Partials      108      108           

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