vergen 7.3.2

Generate 'cargo:rustc-env' instructions via 'build.rs' for use in your code via the env! macro
Documentation
[submodule "testdata/notagsrepo"]
	path = testdata/notagsrepo
	url = https://github.com/rustyhorde/notagsrepo.git
[submodule "testdata/tagsrepo"]
	path = testdata/tagsrepo
	url = https://github.com/rustyhorde/tagsrepo.git
[submodule "testdata/detachedhead"]
	path = testdata/detachedhead
	url = https://github.com/rustyhorde/detachedhead.git