docs: Add release notes for prefect-dbt==0.7.20 (#20994)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Alex Streed <alex.s@prefect.io>
Co-authored-by: alex.s <ajstreed1@gmail.com>

Author: devin-ai-integration[bot]

docs/v3/release-notes/integrations/prefect-dbt.mdx

@@ -2,6 +2,22 @@
 title: prefect-dbt
 ---
 
+## 0.7.20
+
+_Released on March 05, 2026_
+
+**Experimental 🧪**
+
+- Pool dbt adapter connections across `PER_NODE` invocations [#20968](https://github.com/PrefectHQ/prefect/pull/20968) by [@desertaxle](https://github.com/desertaxle)
+- Replace wave-based execution with eager DAG scheduler for `PER_NODE` mode [#20975](https://github.com/PrefectHQ/prefect/pull/20975) by [@app/devin-ai-integration](https://github.com/app/devin-ai-integration)
+- Add `plan()` dry-run method to `PrefectDbtOrchestrator` [#20965](https://github.com/PrefectHQ/prefect/pull/20965) by [@app/devin-ai-integration](https://github.com/app/devin-ai-integration)
+- Add optional `dbt deps` step to `DbtCoreExecutor` [#20960](https://github.com/PrefectHQ/prefect/pull/20960) by [@app/devin-ai-integration](https://github.com/app/devin-ai-integration)
+- Add `CacheConfig` dataclass for cross-run caching [#20957](https://github.com/PrefectHQ/prefect/pull/20957) by [@desertaxle](https://github.com/desertaxle)
+- Add `PREFECT_CLIENT_SERVER_VERSION_CHECK_ENABLED` setting to skip version checks in worker subprocesses [#20973](https://github.com/PrefectHQ/prefect/pull/20973) by [@app/devin-ai-integration](https://github.com/app/devin-ai-integration)
+- Bump the default process worker cap for `PrefectDbtOrchestrator` [#20958](https://github.com/PrefectHQ/prefect/pull/20958) by [@desertaxle](https://github.com/desertaxle)
+
+---
+
 ## 0.7.19
 
 _Released on March 02, 2026_