Chore/multiple fixes ci precommit (#41)

* fix: change pre-cmmit autoupdate schedule to monthly

* fix: change the merge strategy for Changelog to Union

* fix: add .envrc to .gitignore

* ci: ignore pre-commit-config and readthedocs for changelog updates

* ci: fix to correct hpc workflow call

* fix: update precommit config

* chore: update pre-commits

* feat: add codeowners file

* chore: update dependencies

* ci: add hpc-config

* docs: changelog

* fix: respond to review comments

---------

Co-authored-by: Jesper Dramsch <[email protected]>

CHANGELOG.md

@@ -29,13 +29,18 @@ Keep it human-readable, your future self will thank you!
 
 - CI workflow to update the changelog on release
 - Remapper: Preprocessor for remapping one variable to multiple ones. Includes changes to the data indices since the remapper changes the number of variables. With optional config keywords.
+- Codeowners file
+- Pygrep precommit hooks
+- Docsig precommit hooks
+- Changelog merge strategy
 
 ### Changed
 
 - Update CI to inherit from common infrastructue reusable workflows
 - run downstream-ci only when src and tests folders have changed
 - New error messages for wrongs graphs.
 - Feature: Change model to be instantiatable in the interface, addressing [#28](https://github.com/ecmwf/anemoi-models/issues/28) through [#45](https://github.com/ecmwf/anemoi-models/pulls/45)
+- Bugfixes for CI
 
 ### Removed