(fix): Use venv created by pre-commit for validate config (#3166)

* Create venv for pre-commit validate config

* Add files to run on

* Fix files glob to regex

.pre-commit-config.yaml

@@ -41,8 +41,10 @@ repos:
     hooks:
       - id: validate-configs-syntax
         name: validate-configs-syntax
-        entry: python3 ./snuba/validate_configs.py
-        language: system
+        entry: python3 -m snuba.validate_configs
+        language: python
+        additional_dependencies: [ 'jsonschema', 'pyyaml' ]
         pass_filenames: false
+        files: 'snuba/datasets/configuration/.*'
 default_language_version:
   python: python3.8