update changelog and release page

Author: Jacob Pleiness

docs/releases.mdx

@@ -12,6 +12,7 @@ Currently supported versions of Sourcegraph:
 
 | **Release**  | **General Availability Date** | **Supported** | **Release Notes**                                                  | **Install**                                          |
 |--------------|-------------------------------|---------------|--------------------------------------------------------------------|------------------------------------------------------|
+| 6.4 Patch 1  | June 2025                     | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v641203)  | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.4 Patch 0  | May 2025                      | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v640)     | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.3 Patch 2  | May 2025                      | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v634167)  | [Install](https://sourcegraph.com/docs/admin/deploy) |
 | 6.3 Patch 1  | May 2025                      | ✅             | [Notes](https://sourcegraph.com/docs/technical-changelog#v632692)  | [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 */}
 
-# 6.4 Patch 2
+# 6.4 Patch 1
 
 ## v6.4.1203
 
@@ -20,8 +20,8 @@ This page documents all notable changes to Sourcegraph. For more detailed change
 
 #### Release
 
-- verify glibc version in postgresql images `(PR #5735)`
-  - release: add container test to verify `glibc` version does not get unintentionally upgraded in PostgreSQL container images` Backport 68a8d54c9e8fd0a3ff0286d0141f07372209f19a from #5670
+- Verify glibc version in postgresql images `(PR #5735)`
+  - Release: add container test to verify `glibc` version does not get unintentionally upgraded in PostgreSQL container images` Backport 68a8d54c9e8fd0a3ff0286d0141f07372209f19a from #5670
 
 ### Reverts