add release to docs

Author: Jacob Pleiness

docs/releases.mdx

@@ -16,6 +16,7 @@ Currently supported versions of Sourcegraph:
 
 | **Release**  | **General Availability Date** | **Supported** | **Release Notes**                                                  | **Install**                                          |
 | ------------ | ----------------------------- | ------------- | ------------------------------------------------------------------ | ---------------------------------------------------- |
+| 6.8 Patch 1  | September 2025                | ✅            | [Notes](https://sourcegraph.com/docs/technical-changelog#v682313)  | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.8 Patch 0  | September 2025                | ✅            | [Notes](https://sourcegraph.com/docs/technical-changelog#v680)     | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.7 Patch 5  | September 2025                | ✅            | [Notes](https://sourcegraph.com/docs/technical-changelog#v672720)  | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.7 Patch 4  | September 2025                | ✅            | [Notes](https://sourcegraph.com/docs/technical-changelog#v672518)  | [Install](https://sourcegraph.com/docs/admin/deploy) |