[Unit test] - Dismissible Tag

[guidari]

Closes #17504

Added tests for dismissible tag
We are gonna remove slug in this #17706, so we don't have to cover that part

Testing / Reviewing

• Test should be at 95.23

[netlify]

✅ Deploy Preview for carbon-elements ready!

Name	Link
🔨 Latest commit	6b72eae
🔍 Latest deploy log	https://app.netlify.com/sites/carbon-elements/deploys/670d10fa6d980200081507f9
😎 Deploy Preview	https://deploy-preview-17716--carbon-elements.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.

[netlify]

✅ Deploy Preview for v11-carbon-react ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	6b72eae
🔍 Latest deploy log	https://app.netlify.com/sites/v11-carbon-react/deploys/670d10fa8141340007067005
😎 Deploy Preview	https://deploy-preview-17716--v11-carbon-react.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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.11%. Comparing base (32c8bef) to head (6b72eae).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17716      +/-   ##
==========================================
+ Coverage   79.09%   79.11%   +0.02%     
==========================================
  Files         407      407              
  Lines       14029    14029              
  Branches     4358     4390      +32     
==========================================
+ Hits        11096    11099       +3     
+ Misses       2767     2764       -3     
  Partials      166      166              

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