chore: tell renovate to pin all development and doc dependencies (#692)

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### 🔗 Linked issue

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### ❓ Type of change

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- [ ] 📖 Documentation (updates to the documentation or readme)
- [ ] 🐞 Bug fix (a non-breaking change that fixes an issue)
- [ ] 👌 Enhancement (improving an existing functionality)
- [ ] ✨ New feature (a non-breaking change that adds functionality)
- [ ] 🧹 Chore (updates to the build process or auxiliary tools and
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- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to change)

### 📚 Description

Following https://docs.renovatebot.com/dependency-pinning/ since we have
a bit of problems with handling the dependencies currently. In
particular, #690 updates a
package (in the lock file) that is not working, and its not easy to just
revert that particular update.

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renovate.json5

@@ -8,8 +8,15 @@
     'schedule:weekends',
     // Use "chore" type for all commit messages
     ':semanticCommitTypeAll(chore)',
+    // Pin all dev dependencies following https://docs.renovatebot.com/dependency-pinning/
+    ':pinDevDependencies',
   ],
   packageRules: [
+    {
+      // Pin all docs dependencies following https://docs.renovatebot.com/dependency-pinning/
+      matchFileNames: ['docs/package.json'],
+      rangeStrategy: 'pin',
+    },
     {
       // Bump all @storybook/* packages so that always the latest version is used
       matchPackagePatterns: ['storybook', '@storybook/*'],