[ci skip] chore: Limit dependency updates to one day per week

Closes #1333

renovate.json

@@ -19,5 +19,9 @@
     "net.fabricmc:fabric-loader",
     "net.fabricmc.fabric-api:fabric-api",
     "com.github.luben:zstd-jni"  
+  ],
+  "timezone": "Europe/Berlin",
+  "schedule": [
+    "on monday after 9am"
   ]
 }