Update jitsi to stable-5765-1

Changelog:
https://github.com/jitsi/docker-jitsi-meet/blob/stable-5765-1/CHANGELOG.md

roles/matrix-jitsi/defaults/main.yml

@@ -52,7 +52,7 @@ matrix_jitsi_jibri_recorder_password: ''
 
 matrix_jitsi_enable_lobby: false
 
-matrix_jitsi_version: stable-5142
+matrix_jitsi_version: stable-5765-1
 matrix_jitsi_container_image_tag: "{{ matrix_jitsi_version }}" # for backward-compatibility
 
 matrix_jitsi_web_docker_image: "{{ matrix_container_global_registry_prefix }}jitsi/web:{{ matrix_jitsi_container_image_tag }}"