Fix color of text in resolution checkbox

The color was being inherited which, when
a non-default theme for syntax highlighting
caused this to change the color of the text
of the mentioned checkbox (in discussions tab,
replying to a code discussion).

app/assets/stylesheets/pages/note_form.scss

@@ -340,6 +340,8 @@
 }
 
 .note-form-actions {
+  color: $gl-text-color;
+
   @include media-breakpoint-down(xs) {
     .btn {
       float: none;

ee/changelogs/unreleased/7944-fix-resolve-checkbox-text-color.yml

+---
+title: Fix wrong color in resolve/unresolve checkbox when using MR reviews
+merge_request:
+author:
+type: fixed