Use non-root user in Docker

[tangowithfoxtrot]

Type of change

• Bug fix
• New feature development
• Tech debt (refactoring, code cleanup, dependency upgrades, etc)
• Build/deploy pipeline (DevOps)
• Other

Objective

Use a non-root user in Docker. There doesn't seem to be an agreed upon standard for what to name the non-root user, so I named it app, as I followed the general guidance from this MS blog post.

A BWS_CONFIG_FILE environment variable was added to bws as well to make it easier to avoid guessing where the correct config file dir is if you are unaware of the app user's name (and therefor, their home directory).

Code changes

• crates/bws/Dockerfile: Use a non-root user.
• crates/bws/README.md: Document using the CLI with Docker.
• crates/bws/src/main.rs: Add BWS_CONFIG_FILE environment variable.
• crates/bws/CHANGELOG.md: Update changelog.

Before you submit

• Please add unit tests where it makes sense to do so

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1b636e3) 59.41% compared to head (75b62ff) 59.41%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #571   +/-   ##
=======================================
  Coverage   59.41%   59.41%           
=======================================
  Files         171      171           
  Lines       10342    10342           
=======================================
  Hits         6145     6145           
  Misses       4197     4197           

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[bitwarden-bot]

Checkmarx One – Scan Summary & Details – 7b524e4a-98a3-4878-852d-1ba881e48119

Fixed Issues

Severity	Issue	Source File / Package
	Missing User Instruction	/Dockerfile: 23

[dani-garcia]

LGTM now

[coltonhurst]

Thanks for adding the BWS_CONFIG_FILE option 🎉