chore: bump @progress/wct-a11y-spec from 2.21.0 to 2.22.0 in /src-a11y (#3576)

* chore: bump @progress/wct-a11y-spec from 2.21.0 to 2.22.0 in /src-a11y

Bumps [@progress/wct-a11y-spec](https://github.com/telerik/web-components-ux) from 2.21.0 to 2.22.0.
- [Commits](https://github.com/telerik/web-components-ux/commits)

---
updated-dependencies:
- dependency-name: "@progress/wct-a11y-spec"
  dependency-version: 2.22.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* docs: update accessibility and keyboard-nav specs

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: kendo-bot <kendouiteam@progress.com>

Author: dependabot[bot]

components/chart/accessibility/wai-aria-support.md

@@ -28,7 +28,7 @@ The Chart is an interactive Graphics Document (https://www.w3.org/TR/graphics-ar
 
 | Selector | Attribute | Usage |
 | -------- | --------- | ----- |
-| `.k-chart` | `role=graphics-document` | Indicates that the Chart element is a Graphics Document. |
+| `.k-chart` | `role=graphics-document document` | Indicates that the Chart element is a Graphics Document. |
 |  | `aria-roledescription` | User-set value that clarifies the type of Chart to screen reader users. |
 |  | `aria-label` | Announces the user-set title of the Chart. |
 | `.k-chart-point` | `role=graphics-symbol` | Specifies the role of the series point elements. |

src-a11y/package-lock.json

@@ -8,7 +8,7 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@progress/wct-a11y-spec": "^2.21.0",
+    "@progress/wct-a11y-spec": "^2.22.0",
     "gulp": "^4.0.2",
     "gulp-json-editor": "^2.5.6",
     "gulp-rename": "^2.0.0",