ci: fix frontend deployment with nvm

deploy.php

@@ -27,9 +27,17 @@
 
 // The Laravel recipe doesn't build any frontend assets, so we'll
 // need to do it ourselves here
+
+// NVM doesn't play well with deployer
+// https://github.com/deployphp/deployer/issues/2535
+//
+// Must call use_nvm in every run command related to npm so that
+// it's sourced in the current run's shell
+set('use_nvm', 'source $HOME/.nvm/nvm.sh');
+
 task('deploy:frontend', function () {
-    run('npm install');
-    run('npm run build');
+    run('{{use_nvm}} && cd {{release_path}} && npm ci');
+    run('{{use_nvm}} && cd {{release_path}} && npm run build');
 })->desc('Build frontend assets');
 
 after('deploy:vendors', 'deploy:frontend');