Update changelogs

Author: grahamc

doc/manual/source/release-notes-determinate/changes.md

@@ -76,9 +76,3 @@ This section lists the differences between upstream Nix 2.29 and Determinate Nix
 <!-- Determinate Nix version 3.6.6 -->
 
 <!-- Determinate Nix version 3.6.7 -->
-
-* Fix fetchToStore() caching with --impure, improve testing by @edolstra in [DeterminateSystems/nix-src#117](https://github.com/DeterminateSystems/nix-src/pull/117)
-
-* Add lazy-locks setting by @edolstra in [DeterminateSystems/nix-src#113](https://github.com/DeterminateSystems/nix-src/pull/113)
-
-* Sync 2.29.1 by @edolstra in [DeterminateSystems/nix-src#124](https://github.com/DeterminateSystems/nix-src/pull/124)

doc/manual/source/release-notes-determinate/rl-3.6.7.md

@@ -3,9 +3,15 @@
 * Based on [upstream Nix 2.29.1](../release-notes/rl-2.29.md).
 
 ## What's Changed
-* Fix fetchToStore() caching with --impure, improve testing by @edolstra in [DeterminateSystems/nix-src#117](https://github.com/DeterminateSystems/nix-src/pull/117)
-* Add lazy-locks setting by @edolstra in [DeterminateSystems/nix-src#113](https://github.com/DeterminateSystems/nix-src/pull/113)
-* Sync 2.29.1 by @edolstra in [DeterminateSystems/nix-src#124](https://github.com/DeterminateSystems/nix-src/pull/124)
+
+### Security contents
+
+* Patched against GHSA-g948-229j-48j3
+
+### Lazy trees:
+
+* Lazy trees now produces `flake.lock` files with NAR hashes unless `lazy-locks` is set to `true` by @edolstra in [DeterminateSystems/nix-src#113](https://github.com/DeterminateSystems/nix-src/pull/113)
+* Improved caching with lazy-trees when using --impure, with enhanced testing by @edolstra in [DeterminateSystems/nix-src#117](https://github.com/DeterminateSystems/nix-src/pull/117)
 
 
 **Full Changelog**: [v3.6.6...v3.6.7](https://github.com/DeterminateSystems/nix-src/compare/v3.6.6...v3.6.7)