Prepare Release 1.44.0 (#4378)

Updates changelog, release.md and jaeger-ui submodule for v1.44.0

Signed-off-by: Joe Elliott <number101010@gmail.com>

CHANGELOG.md

@@ -13,6 +13,20 @@ next release
 
 ### UI Changes
 
+1.44.0 (2023-04-10)
+-------------------
+### Backend Changes
+
+#### Bug fixes, Minor Improvements
+
+* Store span warnings as tags in Cassandra ([@utsavoza](https://github.com/utsavoza) in [#4313](https://github.com/jaegertracing/jaeger/pull/4313))
+* Add Keep-Alive flag for Zipkin HTTP server ([@topjung3](https://github.com/topjung3) in [#4366](https://github.com/jaegertracing/jaeger/pull/4366))
+* Log access to static assets; remove favicon test ([@yurishkuro](https://github.com/yurishkuro) in [#4302](https://github.com/jaegertracing/jaeger/pull/4302))
+
+### UI Changes
+
+* UI pinned to version [1.29.0](https://github.com/jaegertracing/jaeger-ui/blob/main/CHANGELOG.md#v1290-2023-04-10).
+
 1.43.0 (2023-03-15)
 -------------------
 ### Backend Changes

RELEASE.md

@@ -54,8 +54,7 @@ Here are the release managers for future versions with the tentative release dat
 
 | Version | Release Manager | Tentative release date |
 |---------|-----------------|------------------------|
-| 1.43.0  | @pavolloffay    | 8 March 2023           |
-| 1.44.0  | @joe-elliott    | 5 April 2023           |
 | 1.45.0  | @albertteoh     | 3 May 2023             |
 | 1.46.0  | @yurishkuro     | 3 June 2023            |
 | 1.47.0  | @pavolloffay    | 5 July 2023            |
+| 1.48.0  | @joe-elliott    | 2 August 2023          |