update pre-commit + add coverage dev dep

Author: FredHappyface

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/FHPythonUtils/Blackt
-    rev: '2022.0.2'
+    rev: '2022.0.3'
     hooks:
       - id: blackt
 

pyproject.toml

@@ -43,6 +43,7 @@ pandoc = ["catpandoc"]
 pytest = "^7.1.1"
 pylint = "^2.13.5"
 handsdown = "^1.1.0"
+coverage = "^6.3.2"
 
 [tool.black]
 line-length = 100