fix(packages): install packages globally to faciliate "extends" configs

Dockerfile

@@ -11,9 +11,10 @@ WORKDIR /action
 
 COPY action ./
 
-RUN npm ci --only=prod
+# install packages globally
+RUN node /action/install.js
 
-# also install globally
-RUN npm i --global --only=prod
+# install locally
+RUN npm ci --only=prod
 
 ENTRYPOINT ["node", "/action/index.js"]

action/install.js

@@ -0,0 +1,6 @@
+const { dependencies } = require('./package.json')
+const { spawn } = require('child_process')
+
+for (const [dependency, version] of Object.entries(dependencies)) {
+  spawn('npm', ['install', '--global', `${dependency}@${version}`], { stdio: 'inherit' })
+}