Update MSRV to 1.71 and add CI test #4

	---
	name: Minimum Rust Version

	on:
	pull_request:
	push:
	branches:
	- "main"
	- "rc"
	- "hotfix-rc"
	workflow_dispatch:

	defaults:
	run:
	shell: bash

	jobs:
	msrv:
	name: Check MSRV for - ${{ matrix.settings.os }} - ${{ matrix.settings.target }}
	runs-on: ${{ matrix.settings.os \|\| 'ubuntu-latest' }}
	strategy:
	fail-fast: false
	matrix:
	settings:
	- os: ubuntu-22.04
	target: x86_64-unknown-linux-gnu

	steps:
	- name: Checkout
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

	- name: Install rust
	uses: dtolnay/rust-toolchain@be73d7920c329f220ce78e0234b8f96b7ae60248 # stable
	with:
	# Important: When updating this, make sure to update the Readme file
	# and also the `rust-version` field in all the `Cargo.toml`.
	toolchain: 1.71.0
	targets: ${{ matrix.settings.target }}

	- name: Cache cargo registry
	uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
	with:
	key: msrv-${{ matrix.settings.target }}-cargo-${{ matrix.settings.os }}

	- name: cargo check MSRV
	run: cargo check -p bitwarden --all-features

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