fix: typo in issue template

Author: maartenpaauw

.github/ISSUE_TEMPLATE/config.yml

@@ -11,4 +11,4 @@ contact_links:
     about: Learn how to notify us for sensitive bugs
   - name: Report a bug
     url: https://github.com/maartenpaauw/laravel-specification-pattern/issues/new
-    about: Report a reproducable bug
+    about: Report a reproducible bug