fix(release): sync linux-installer build example version with 0.54.0

Author: elkaix

packages/linux-installer/README.md

@@ -36,7 +36,7 @@ file at `/usr/share/doc/pythinker-code/LICENSE`.
 ## Build
 
 ```sh
-bash packages/linux-installer/build.sh 0.51.0
+bash packages/linux-installer/build.sh 0.54.0
 ```
 
 Outputs to `dist/`: