build: drop python 3.7

Author: vzhd1701

.pre-commit-config.yaml

@@ -5,7 +5,7 @@
 
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.2.0
+    rev: v4.5.0
     hooks:
     -   id: check-vcs-permalinks
     -   id: end-of-file-fixer

README.md

@@ -60,7 +60,7 @@ $ pipx install enex2notion
 $ pip install --user enex2notion
 ```
 
-**Python 3.7 or later required.**
+**Python 3.8 or later required.**
 
 ### From source