Enhance msrv check to check all crates

[Jefffrey]

          I wonder if should be checking more (or all) crates here?

datafusion/.github/workflows/rust.yml

Lines 594 to 641 in b8b0c55

	# Verify MSRV for the crates which are directly used by other projects:
	# - datafusion
	# - datafusion-substrait
	# - datafusion-proto
	# - datafusion-cli
	msrv:
	name: Verify MSRV (Min Supported Rust Version)
	runs-on: ubuntu-latest
	container:
	image: amd64/rust
	steps:
	- uses: actions/checkout@v4
	- name: Setup Rust toolchain
	uses: ./.github/actions/setup-builder
	- name: Install cargo-msrv
	run: cargo install cargo-msrv
	- name: Check datafusion
	working-directory: datafusion/core
	run: |
	# If you encounter an error with any of the commands below it means
	# your code or some crate in the dependency tree has a higher MSRV
	# (Min Supported Rust Version) than the one specified in the
	# `rust-version` key of `Cargo.toml`.
	#
	# To reproduce:
	# 1. Install the version of Rust that is failing. Example:
	# rustup install 1.80.1
	# 2. Run the command that failed with that version. Example:
	# cargo +1.80.1 check -p datafusion
	#
	# To resolve, either:
	# 1. Change your code to use older Rust features,
	# 2. Revert dependency update
	# 3. Update the MSRV version in `Cargo.toml`
	#
	# Please see the DataFusion Rust Version Compatibility Policy before
	# updating Cargo.toml. You may have to update the code instead.
	# https://github.com/apache/datafusion/blob/main/README.md#rust-version-compatibility-policy
	cargo msrv --output-format json --log-target stdout verify
	- name: Check datafusion-substrait
	working-directory: datafusion/substrait
	run: cargo msrv --output-format json --log-target stdout verify
	- name: Check datafusion-proto
	working-directory: datafusion/proto
	run: cargo msrv --output-format json --log-target stdout verify
	- name: Check datafusion-cli
	working-directory: datafusion-cli
	run: cargo msrv --output-format json --log-target stdout verify

See arrow-rs PR for reference which identified a similar issue there: apache/arrow-rs#6742

Originally posted by @Jefffrey in #14009 (review)