ci improvements

tools/wasm-pack-plugin/Dockerfile

@@ -1,5 +1,6 @@
 FROM rust:alpine
 
+COPY plugin.sh /bin/
 RUN apk add --no-cache \
         npm \
         musl-dev \
@@ -10,7 +11,7 @@ RUN apk add --no-cache \
         make \
     && cargo install wasm-pack \
     && rustup target add wasm32-unknown-unknown
+    && chmod +x /bin/plugin.sh
 
-COPY plugin.sh /plugin.sh
 
-ENTRYPOINT ["/plugin.sh"]
+ENTRYPOINT /bin/plugin.sh