Report bindgen version

[justsmth]

Issues:

Addresses: #484

Description of changes:

When external bindgen is used, inspect the version number detected and provide guidance on how to upgrade.

Call-outs:

• The output is sent to stderr and is only seen when the build fails.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.69%. Comparing base (c358484) to head (3606c6c).
Report is 53 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #494      +/-   ##
==========================================
- Coverage   95.80%   92.69%   -3.11%     
==========================================
  Files          61       63       +2     
  Lines        8143     8456     +313     
  Branches        0     8456    +8456     
==========================================
+ Hits         7801     7838      +37     
- Misses        342      361      +19     
- Partials        0      257     +257     

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[skmcgrail]

Suggested change

	eprintln!(
	"bindgen-cli was used. Detected version was: {}.{}.{} \n\
	If this is not the latest version, consider upgrading : \
	`cargo install --force --locked bindgen-cli`\
	\n\
	See our User Guide for more information about bindgen:\
	https://aws.github.io/aws-lc-rs/index.html",
	major_version, minor_version, patch_version
	);
	eprintln!(
	"bindgen-cli was used. Detected version was: {major_version}.{minor_version}.{patch_version} \n\
	If this is not the latest version, consider upgrading : \
	`cargo install --force --locked bindgen-cli`\
	\n\
	See our User Guide for more information about bindgen:\
	https://aws.github.io/aws-lc-rs/index.html"
	);