Move workflow dispatch up

Author: jlian

.github/workflows/wasm-rust-build.yml

@@ -1,6 +1,7 @@
 name: Build and Push WASM Rust Base Image
 
 on:
+  workflow_dispatch:
   push:
     branches: [ main, wasm ]
     paths:
@@ -9,7 +10,6 @@ on:
     branches: [ main ]
     paths:
       - 'samples/wasm/base-image/**'
-  workflow_dispatch:
 
 jobs:
   build-and-push: