chore: .gitignore local development files (#1137)

* chore: .gitignore local development files

- venv, my company's development team keeps venvs in project folders.
- coverage.xml is generated by tox

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: dopry

.gitignore

@@ -48,3 +48,6 @@ _build
 
 # Sqlite database files
 *.sqlite
+
+/venv/
+/coverage.xml