update docs (#1317)

<!-- Explain the changes introduced in your PR -->
Correct the releases.mdx file

## Pull Request approval

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Author: Chickensoupwithrice

docs/releases.mdx

@@ -12,6 +12,7 @@ Currently supported versions of Sourcegraph:
 
 | **Release**  | **General Availability Date** | **Supported** | **Release Notes**                                                  | **Install**                                          |
 |--------------|-------------------------------|---------------|--------------------------------------------------------------------|------------------------------------------------------|
+| 6.6 Patch 2  | August 2025                   | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v662517)  | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.6 Patch 1  | June 2025                     | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v66868)   | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.6 Patch 0  | June 2025                     | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v660)     | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.5 Patch 2  | June 2025                     | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v652654)  | [Install](https://sourcegraph.com/docs/admin/deploy) |

docs/technical-changelog.mdx

@@ -4,7 +4,7 @@ This page documents all notable changes to Sourcegraph. For more detailed change
 
 {/* CHANGELOG_START */}
 
-# 6.6 Patch 3
+# 6.6 Patch 2
 
 ## v6.6.2517