Bump to v0.12.7 (#1044)

* 0.12.7rc1
* v0.12.7

Author: wwwillchen

docs/internal/publishing.md

@@ -9,7 +9,7 @@ If you haven't done this before, follow the [first-time setup](#first-time-uploa
 Before, cutting a release, you'll want to check two things:
 
 1. The `main` branch should be healthy (e.g. latest commit is green).
-2. Check the snyk dashboard to review security issues: https://app.snyk.io/org/wwwillchen/project/756c376f-d2e7-44f8-9c20-e4062fdf543f
+2. Check the [snyk dashboard](https://app.snyk.io/org/wwwillchen/project/756c376f-d2e7-44f8-9c20-e4062fdf543f) to review security issues:
   - It only runs weekly so you need to click "Retest now". If there's any High security issues for a core Mesop file (e.g. anything in `mesop/*`), then you should address it before publishing a release.
 
 ## Update version to RC

mesop/version.py

@@ -1,6 +1,6 @@
 """Contains the version string."""
 
-VERSION = "0.12.6"
+VERSION = "0.12.7"
 
 if __name__ == "__main__":
   print(VERSION)