CI: change git:// to https:// in pre-commit (#13)

- https:// is more reliable than git:// (IIUC it's fewer back-and-forth)
 - coincidentally, github has flaky git:// access today
 - https content can be cached trivially for accelerated remote access
   (my pre-commit local cache seems to need to check github every run)

.pre-commit-config.yaml

@@ -1,5 +1,5 @@
 repos:
-- repo: git://github.com/antonbabenko/pre-commit-terraform
+- repo: https://github.com/antonbabenko/pre-commit-terraform
   rev: v1.43.0
   hooks:
     - id: terraform_fmt