add py_style, fake8 deps to ydb

build/config/tests/flake8/ya.make

@@ -0,0 +1,4 @@
+OWNER(
+    g:python-committee
+    g:yatest
+)

build/config/tests/py_style/config.toml

@@ -0,0 +1,3 @@
+[tool.black]
+line-length = 120
+skip-string-normalization = true

build/config/tests/py_style/ya.make

@@ -0,0 +1,7 @@
+LIBRARY()
+
+RESOURCE_FILES(
+    config.toml
+)
+
+END()