Unpin pre-commit version in tox

The config uses the `pre-commit/pre-commit-hook` repository which
since v5.0 has multiple hooks using the `pre-commit` stage which was
only added in pre-commit [3.2.0][] causing a run failure when run
under a pre-commit pinned to 2.2. From a very surface looks it seems
like https://pre-commit.ci/ is anal about keeping everything on latest
so pinning pre-commit in tox seems like it can only cause problems (by
drifting behind the actual CI).

Of note: it looks like the `minimum_pre_commit_version` stricture on
hooks does not do anything: all the `pre-commit` hooks are filtered on
version except [`destroyed-symlinks`][] but I get an error on
`check-added-large-file`:

    ==> At Hook(id='check-added-large-files')
    ==> At key: stages
    ==> At index 0
    =====> Expected one of commit, commit-msg, manual, merge-commit, post-checkout, post-commit, post-merge, post-rewrite, prepare-commit-msg, push but got: 'pre-commit'

[3.2.0]: https://github.com/pre-commit/pre-commit/blob/main/CHANGELOG.md#320---2023-03-17
[`destroyed-symlinks`]: pre-commit/pre-commit-hooks@c7d1e85

Author: xmo-odoo

.pre-commit-config.yaml

@@ -1,3 +1,4 @@
+minimum_pre_commit_version: '3.20'
 ci:
   skip: [pylint]
 
@@ -136,7 +137,7 @@ repos:
         name: mypy
         args: []
         additional_dependencies:
-          ["isort>=5", "platformdirs==2.2.0", "py==1.11", "tomlkit>=0.10.1"]
+          ["isort>=5", "platformdirs==2.2.0", "py==1.11", "tomlkit>=0.10.1", "types-requests"]
         exclude: tests(/\w*)*/functional/|tests/input|tests(/.*)+/conftest.py|doc/data/messages|tests(/\w*)*data/
   - repo: https://github.com/rbubley/mirrors-prettier
     rev: v3.6.2

tox.ini

@@ -21,7 +21,8 @@ commands =
 [testenv:mypy]
 basepython = python3
 deps =
-    pre-commit~=2.20
+    types-requests
+    pre-commit
 commands =
     pre-commit run mypy --all-files