package.json: pin Hugo version to 0.134.3

Newer versions fail with the following error:

```
WARN  deprecated: data.GetJSON was deprecated in Hugo v0.123.0 and will be removed in a future release. use resources.Get or resources.GetRemote with transform.Unmarshal
```

Should be properly fixed in our code later and remove the version override that was added here

Author: XhmikosR

package.json

@@ -40,7 +40,8 @@
     "!.DS_Store"
   ],
   "hugo-bin": {
-    "buildTags": "extended"
+    "buildTags": "extended",
+    "version": "0.134.3"
   },
   "scripts": {
     "start": "npm run docs-serve",