chore(git): don’t save temporary end‑to‑end test files

During some Terraform tests, end‑to‑end tests generate
temporary files that should not be saved in the Git history.

Author: diodonfrost

.gitignore

@@ -4,6 +4,7 @@
 *.tfstate*
 *.zip
 terraform.tfstate.d
+*.state
 
 # Python files
 .tox