Unlock pinned version requirement for dependencies

When using a pinned version Dependabot will not propose changes.

package.json

@@ -40,10 +40,10 @@
   "devDependencies": {
     "@chanzuckerberg/axe-storybook-testing": "^6.0.1",
     "@namics/stylelint-bem": "^7.0.0",
-    "@storybook/addon-a11y": "6.5.9",
-    "@storybook/addon-actions": "6.5.9",
-    "@storybook/addon-essentials": "6.5.9",
-    "@storybook/addon-links": "6.5.9",
+    "@storybook/addon-a11y": "^6.5.9",
+    "@storybook/addon-actions": "^6.5.9",
+    "@storybook/addon-essentials": "^6.5.9",
+    "@storybook/addon-links": "^6.5.9",
     "@storybook/node-logger": "^6.3.7",
     "@storybook/preset-create-react-app": "^3.2.0",
     "@storybook/react": "^6.5.9",
@@ -78,7 +78,7 @@
     "react": "^17.0.2",
     "react-docgen-typescript": "^2.1.0",
     "react-dom": "^17.0.2",
-    "react-scripts": "4.0.3",
+    "react-scripts": "^4.0.3",
     "sass": "^1.53.0",
     "skeleton-screen-css": "^1.1.0",
     "storybook-addon-designs": "^6.2.1",