[Release] Bumped ddev version to 13.0.0 (#21126)

Author: steveny91

ddev/CHANGELOG.md

@@ -2,6 +2,28 @@
 
 <!-- towncrier release notes start -->
 
+## 13.0.0 / 2025-08-25
+
+***Removed***:
+
+* Remove `ddev size create-dashboard` ([#20766](https://github.com/DataDog/integrations-core/pull/20766))
+
+***Added***:
+
+* Add support for Vagrant VMs in testing ([#20353](https://github.com/DataDog/integrations-core/pull/20353))
+* Adds logic to ensure `ddev size` filters integrations by the specified Python version. ([#20742](https://github.com/DataDog/integrations-core/pull/20742))
+* Updated the set of allowed Metric Metadata units with the latest additions ([#21048](https://github.com/DataDog/integrations-core/pull/21048))
+* Bump Datadog Checks Dev requirement in DDEV ([#21124](https://github.com/DataDog/integrations-core/pull/21124))
+* Add a utils.hatch module to centralize hatch operations ([#21135](https://github.com/DataDog/integrations-core/pull/21135))
+* Use ddev to target Agent branch in build_agent.yaml ([#21136](https://github.com/DataDog/integrations-core/pull/21136))
+
+***Fixed***:
+
+* Modify the CI matrix generation by spliting jobs in 2 groups: windows and linux tests. This is done to reduce the number of jobs each workflow runs. ([#20963](https://github.com/DataDog/integrations-core/pull/20963))
+* Skip E2E test execution for packages that do not define them. ([#20967](https://github.com/DataDog/integrations-core/pull/20967))
+* Add is:pull-request to pull request search to avoid 422s on private repos ([#21021](https://github.com/DataDog/integrations-core/pull/21021))
+* Fix ddev env test to respect e2e-env config flag even when an environment is specified ([#21119](https://github.com/DataDog/integrations-core/pull/21119))
+
 ## 12.2.0 / 2025-07-31
 
 ***Added***: