improve dev container

[iQQBot]

Description

This PR adds OIDC support for dev container, and introduces some leeway scripts

# for one time setup workspace, it will build typescript package and verify go modules
leeway run dev:prepare

# for install internal dev utils such as gpctl,kubecdl,gp-gcloud
leeway run dev:install-dev-utils

# for build and install typescript deps
leeway run dev:prepare-ts

Related Issue(s)

Fixes #

How to test

1. open this PR in ec2 / dogfood check everything still work

Documentation

Preview status

gitpod:summary

Build Options

Build

• /werft with-werft
  Run the build with werft instead of GHA
• leeway-no-cache
• /werft no-test
  Run Leeway with --dont-test

Publish

• /werft publish-to-npm
• /werft publish-to-jb-marketplace

Installer

• analytics=segment
• with-dedicated-emulation
• workspace-feature-flags
  Add desired feature flags to the end of the line above, space separated

Preview Environment / Integration Tests

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-gce-vm
  If enabled this will create the environment on GCE infra
• /werft preemptible
  Saves cost. Untick this only if you're really sure you need a non-preemtible machine.
• with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh. If enabled, with-preview and with-large-vm will be enabled.
• with-monitoring

/hold