chore: update changelog for v0.19

docs/changelogs/v0.19.md

 <!-- omit in toc -->
 # Kubo changelog v0.19
 
+## v0.19.1
+
+### 🔦 Highlights
+
+#### DHT Timeouts
+In v0.16.0, Kubo added the ability to configure custom content routers and DHTs with the `custom` router type, and as part of this added a default 5 minute timeout to all DHT operations. In some cases with large repos ([example](https://github.com/ipfs/kubo/issues/9722)), this can cause provide and reprovide operations to fail because the timeout is reached. This release removes these timeouts on DHT operations. If users desire these timeouts, they can be added back using [the `custom` router type](https://github.com/ipfs/kubo/blob/master/docs/config.md#routingrouters-parameters).
+
+### Changelog
+
+<details><summary>Full Changelog</summary>
+
+- github.com/ipfs/kubo:
+  - chore: update version
+  - fix: remove timeout on default DHT operations (#9783) ([ipfs/kubo#9783](https://github.com/ipfs/kubo/pull/9783))
+  - chore: update version
+- github.com/ipfs/go-blockservice (v0.5.0 -> v0.5.1):
+  - chore: release v0.5.1
+  - fix: remove busyloop in getBlocks by removing batching
+- github.com/libp2p/go-libp2p (v0.26.3 -> v0.26.4):
+  - release v0.26.4
+  - autorelay: fix busy loop bug and flaky tests in relay finder (#2208) ([libp2p/go-libp2p#2208](https://github.com/libp2p/go-libp2p/pull/2208))
+- github.com/libp2p/go-libp2p-routing-helpers (v0.6.1 -> v0.6.2):
+  - Release v0.6.2 (#73) ([libp2p/go-libp2p-routing-helpers#73](https://github.com/libp2p/go-libp2p-routing-helpers/pull/73))
+  - feat: zero timeout on composed routers should disable timeout (#72) ([libp2p/go-libp2p-routing-helpers#72](https://github.com/libp2p/go-libp2p-routing-helpers/pull/72))
+
+</details>
+
+### Contributors
+
+| Contributor | Commits | Lines ± | Files Changed |
+|-------------|---------|---------|---------------|
+| Marco Munizaga | 1 | +347/-46 | 5 |
+| Gus Eggert | 3 | +119/-93 | 8 |
+| Jorropo | 2 | +20/-32 | 2 |
+| galargh | 2 | +2/-2 | 2 |
+| Marten Seemann | 1 | +2/-2 | 1 |
+
 <!-- omit in toc -->
 ## v0.19.0
 
 - [Overview](#overview)
 - [🔦 Highlights](#-highlights)
   - [Improving the libp2p resource management integration](#improving-the-libp2p-resource-management-integration)
-  - [PubSub message caching improvements](#pubsub-message-caching-improvements)
   - [Gateways](#gateways)
     - [Signed IPNS Record response format](#signed-ipns-record-response-format)
     - [Example fetch and inspect IPNS record](#example-fetch-and-inspect-ipns-record)
@@ -21,6 +57,7 @@
 ### 🔦 Highlights
 
 #### Improving the libp2p resource management integration
+
 There are further followups up on libp2p resource manager improvements in Kubo [0.18.0](https://github.com/ipfs/kubo/blob/master/docs/changelogs/v0.18.md#improving-libp2p-resource-management-integration-1)
 and [0.18.1](https://github.com/ipfs/kubo/blob/master/docs/changelogs/v0.18.md#improving-libp2p-resource-management-integration):
 1. `ipfs swarm limits` and `ipfs swarm stats` have been replaced by `ipfs swarm resources` to provide a single/combined view for limits and their current usage in a more intuitive ordering.
@@ -28,10 +65,6 @@ and [0.18.1](https://github.com/ipfs/kubo/blob/master/docs/changelogs/v0.18.md#i
    - Note: we don't expect most users to need these capablities, but they are there if so.
 1. [Doc updates](https://github.com/ipfs/kubo/blob/master/docs/libp2p-resource-management.md).
 
-#### PubSub message caching improvements
-
-The PubSub message cache will now [prune messages after TTL is exhausted](https://github.com/ipfs/kubo/blob/master/docs/config.md#pubsubseenmessagesttl), [either based on the last time a message was seen or the first time it was seen](https://github.com/ipfs/kubo/blob/master/docs/config.md#pubsubseenmessagesstrategy).
-
 #### Gateways
 
 ##### Signed IPNS Record response format