Update canvas and link token colors (#1412)

* Update link and muted canvas tokens

* Add changeset

Author: danielguillan

.changeset/fresh-colors-map.md

@@ -0,0 +1,7 @@
+---
+'@primer/react-brand': patch
+'@primer/brand-primitives': patch
+---
+
+- Mapped the light and dark `--brand-color-text-link-rest` values to `blue-6` and `blue-1`.
+- Updated the light `--brand-color-canvas-muted` value to `#F9FBF9`.

packages/design-tokens/src/tokens/functional/colors/global.json

@@ -87,8 +87,8 @@
       },
       "link": {
         "rest": {
-          "value": "#005DD5",
-          "dark": "#8DD6FF"
+          "value": "var(--base-color-scale-blue-6)",
+          "dark": "var(--base-color-scale-blue-1)"
         },
         "pressed": {
           "value": "var(--base-color-scale-blue-8)",
@@ -144,7 +144,7 @@
         "dark": "var(--base-color-scale-gray-8)"
       },
       "muted": {
-        "value": "#FAFAFA",
+        "value": "#F9FBF9",
         "dark": "#090D0A"
       }
     },