chore(deps-dev): bump pa11y-ci from 2.42.0 to 3.0.1 (#938)

* changed the way errors are reported locally and in GitHub actions
* changed the `hideElements` rule to adapt to the new aXe rules
* it allowed to find new a11y enhancements that have been done here:
  * add some `aria-label`s in Navbar component page
  * modified the markup of the Nested tabs components
  * improved semantics for buttons in Cards examples
  * add missing `aria-labelledby` in our Footer component's accordions

Co-authored-by: louismaxime.piton <[email protected]>

build/.pa11yci.json

@@ -7,13 +7,17 @@
             "--no-sandbox"
         ]
     },
+    "reporters": [
+      "cli",
+      ["json", { "fileName": "./pa11y-ci-results.json" }]
+    ],
     "runners": [
       "axe"
     ],
-    "hideElements": "[id*='tarteaucitron'], #TableOfContents, .text-primary, .accordion-button:not(.collapsed), .active, [aria-current], select:disabled, [disabled] label, [disabled] + label, .modal, .bd-example nav, .badge.rounded-pill.bg-info.text-white, a.disabled, .form-check.form-switch, .nav-tabs .nav-item .nav-link.disabled, body > div.position-fixed:last-of-type",
+    "useIncognitoBrowserContext": false,
+    "hideElements": "iframe, #text-decoration + p + div a.text-decoration-none, .accordion-collapse, #offcanvas, #offcanvasDark, #offcanvasResponsive, #bdSidebar",
     "ignore": [
-      "heading-order",
-      "scrollable-region-focusable"
+      "color-contrast"
     ]
   }
 }