chore: pin pnpm v9 as the package manager (#4728)

package.json

@@ -5,6 +5,7 @@
   "author": "Hoppscotch (support@hoppscotch.io)",
   "private": true,
   "license": "MIT",
+  "packageManager": "pnpm@9.15.4",
   "scripts": {
     "preinstall": "npx only-allow pnpm",
     "prepare": "husky",

prod.Dockerfile

@@ -40,7 +40,7 @@ ENV HOPP_ALLOW_RUNTIME_ENV=true
 # Required by @hoppscotch/js-sandbox to build `isolated-vm`
 RUN apk add python3 make g++ zlib-dev brotli-dev c-ares-dev nghttp2-dev openssl-dev icu-dev
 
-RUN npm install -g pnpm
+RUN npm install -g pnpm@9.15.4
 COPY pnpm-lock.yaml .
 RUN pnpm fetch
 
@@ -67,7 +67,7 @@ RUN sh -c "curl -qL https://www.npmjs.com/install.sh | env npm_install=10.9.2 sh
 # Install caddy
 COPY --from=caddy_builder /tmp/caddy-build/cmd/caddy/caddy /usr/bin/caddy
 
-RUN npm install -g pnpm
+RUN npm install -g pnpm@9.15.4
 
 COPY --from=base_builder  /usr/src/app/packages/hoppscotch-backend/backend.Caddyfile /etc/caddy/backend.Caddyfile
 COPY --from=backend_builder /dist/backend /dist/backend
@@ -181,7 +181,7 @@ LABEL org.opencontainers.image.source="https://github.com/hoppscotch/hoppscotch"
 
 RUN apk add tini
 
-RUN npm install -g pnpm
+RUN npm install -g pnpm@9.15.4
 
 # Copy necessary files
 # Backend files