feat(css): change the dark mode red color hexadecimal value (#2549)

Co-authored-by: Julien Déramond <julien.deramond@orange.com>

scss/_color-palette.scss

@@ -24,7 +24,7 @@ $ods-forest-100: #6c6 !default;
 $ods-forest-200: #228722 !default;
 
 // Fire
-$ods-fire-100: #f66 !default;
+$ods-fire-100: #ff4d4d !default;
 $ods-fire-200: #cd3c14 !default;
 
 // Water

site/content/docs/5.3/migration.md

@@ -9,6 +9,13 @@ aliases:
 toc: true
 ---
 
+## v5.3.4
+
+### Core
+
+- **Colors**
+ - <span class="badge text-bg-warning">Warning</span> The dark mode red color hexadecimal value has been updated from `#f66` to `#ff4d4f` after a change in the design specifications to enhance the contrast for a better accessibility. This modification should be transparent for you except if you were using an hardcoded hexadecimal value directly in your websites.
+
 ## v5.3.3
 
 <hr class="mb-4">
@@ -153,7 +160,7 @@ Retrieve our color theme in the [new color theme documentation]({{< docsref "/cu
  - <span class="badge text-bg-danger">Breaking</span> The markup has been changed:
  - `.input-group` class has been removed
  - `.btn-secondary` class has been replaced by `.btn-outline-secondary`
- 
+
  Make sure to incorporate these changes into your websites.
 
 - **Star rating**