Please add support for envfile in the dapr multiapp run

[litan1106]

In what area(s)?

/area runtime

Describe the feature

Please add support for envfile in the dapr multiapp run. Currently, it only supported environment variables within the yaml file.

EnvFile example

https://docs.dapr.io/developing-applications/local-development/multi-app-dapr-run/multi-app-template/#template-file-structure

[mukundansundar]

Moving it to CLI repo.

[dapr-bot]

This issue has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in the next 7 days unless it is tagged (pinned, good first issue, help wanted or triaged/resolved) or other activity occurs. Thank you for your contributions.