Add blank line to dev requirements

LulzLoL231 · LulzLoL231 · commit a5903008a42f · 2022-09-12T05:45:48.000+09:00
diff --git a/dev-requirements.txt b/dev-requirements.txt
@@ -15,4 +15,4 @@ pyparsing==3.0.9
 pytest==7.1.3
 pytest-asyncio==0.19.0
 toml==0.10.2
-tomli==2.0.1
+tomli==2.0.1
