chore(packaging): Enable support for versioning Git archives (#737)

It essentially allows one to
```
$ pip install https://github.com/antonbabenko/pre-commit-terraform/archive/a7155a7.tar.gz
```
and get a correctly computed version in the installed metadata.

[1]: https://setuptools-scm.rtfd.io/en/latest/usage/#git-archives

.git_archival.txt

@@ -0,0 +1,3 @@
+node: $Format:%H$
+node-date: $Format:%cI$
+describe-name: $Format:%(describe:tags=true)$

.gitattributes

@@ -0,0 +1 @@
+.git_archival.txt  export-subst

hatch.toml

@@ -14,7 +14,9 @@ packages = [
 ]
 
 [metadata.hooks.vcs.urls]
-'Source Archive' = 'https://github.com/antonbabenko/pre-commit-terraform/archive/{commit_hash}.tar.gz'
+# FIXME: Uncomment 'Source Archive' as soon as
+# FIXME: https://github.com/ofek/hatch-vcs/issues/80 is fixed.
+# 'Source Archive' = 'https://github.com/antonbabenko/pre-commit-terraform/archive/{commit_hash}.tar.gz'
 'GitHub: repo' = 'https://github.com/antonbabenko/pre-commit-terraform'
 
 [version]