Docs: add v8.11.1 release notes (#102097) (#102197)

Add v8.11.1 release notes.

(cherry picked from commit 35629234f5de33de2cd2b4e9eb75010d53b67b8a)

docs/reference/release-notes.asciidoc

@@ -7,6 +7,7 @@
 This section summarizes the changes in each release.
 
 * <<release-notes-8.12.0>>
+* <<release-notes-8.11.1>>
 * <<release-notes-8.11.0>>
 * <<release-notes-8.10.4>>
 * <<release-notes-8.10.3>>
@@ -55,6 +56,7 @@ This section summarizes the changes in each release.
 --
 
 include::release-notes/8.12.0.asciidoc[]
+include::release-notes/8.11.1.asciidoc[]
 include::release-notes/8.11.0.asciidoc[]
 include::release-notes/8.10.4.asciidoc[]
 include::release-notes/8.10.3.asciidoc[]

docs/reference/release-notes/8.11.1.asciidoc

@@ -0,0 +1,38 @@
+[[release-notes-8.11.1]]
+== {es} version 8.11.1
+
+Also see <<breaking-changes-8.11,Breaking changes in 8.11>>.
+
+[[bug-8.11.1]]
+[float]
+=== Bug fixes
+
+Allocation::
+* Avoid negative `DesiredBalanceStats#lastConvergedIndex` {es-pull}101998[#101998]
+
+Authentication::
+* Fix memory leak from JWT cache (and fix the usage of the JWT auth cache) {es-pull}101799[#101799]
+
+Machine Learning::
+* Fix inference timeout from the Inference Ingest Processor {es-pull}101971[#101971]
+
+Mapping::
+* Fix incorrect dynamic mapping for non-numeric-value arrays #101965 {es-pull}101967[#101967]
+
+Network::
+* Fail listener on exception in `TcpTransport#openConnection` {es-pull}101907[#101907] (issue: {es-issue}100510[#100510])
+
+Search::
+* Dry up `AsyncTaskIndexService` memory management and fix inefficient circuit breaker use {es-pull}101892[#101892]
+
+Snapshot/Restore::
+* Respect regional AWS STS endpoints {es-pull}101705[#101705] (issue: {es-issue}89175[#89175])
+
+[[enhancement-8.11.1]]
+[float]
+=== Enhancements
+
+Machine Learning::
+* Add inference counts by model to the machine learning usage stats {es-pull}101915[#101915]
+
+