[monorepo] Try to get make install working in copilot (#32800)

* [monorepo] move building of nginx proxy into Makefile

* [v1] add fake-secrets.env

* [github] add copilot-setup-steps.yml workflow

* [make] debug permissions

* [monorepo] use the host uid/gid for monorepo service

* [web] populate DOCKER_USER for test_frontend_ct

* [github] run npm install outside docker in Copilot sandbox

* [monorepo] add comment for building nginx-proxy image locally

* [monorepo] change uid/gid of node user in cypress image

* [monorepo] low-level rewrite of passwd and groups to match host user

GitOrigin-RevId: d74a5801f0318bab7e7f460374255426706002a3

dockerfiles/cypress/Dockerfile

@@ -0,0 +1,12 @@
+FROM cypress/included:13.13.2
+ARG USER_UID=1000
+ARG USER_GID=1000
+
+WORKDIR /overleaf
+
+RUN sed -i s/node:x:1000:/node:x:${USER_GID}:/ /etc/group \
+&&  sed -i s_node:x:1000:1000::/home/node:/bin/bash_node:x:${USER_UID}:${USER_GID}::/home/node:/bin/bash_ /etc/passwd \
+&&  chown -R node:node /home/node \
+&&  chown node:node /overleaf
+
+USER node