Fix flake and make Vale manual

Author: lucasssvaz

Diff for: .flake8

@@ -6,7 +6,7 @@
 [flake8]
 doctests = True
 # W503 and W504 are mutually exclusive. PEP 8 recommends line break before.
-ignore = W503
+ignore = W503,E203
 max-complexity = 10
 max-line-length = 120
 select = E,W,F,C,N

Diff for: .pre-commit-config.yaml

@@ -58,6 +58,8 @@ repos:
         pass_filenames: false
         args: [sync]
         types_or: [markdown, rst]
+        stages: [manual]
       - id: vale
         language_version: "1.21.6"
         types_or: [markdown, rst]
+        stages: [manual]