Update Synapse from 1.50.1 to 1.50.2

Fixes a issue with room version 1.

Merging has to wait until ARM images are built ofc.

roles/matrix-synapse/defaults/main.yml

@@ -15,8 +15,8 @@ matrix_synapse_docker_image_name_prefix: "{{ 'localhost/' if matrix_synapse_cont
 # amd64 gets released first.
 # arm32 relies on self-building, so the same version can be built immediately.
 # arm64 users need to wait for a prebuilt image to become available.
-matrix_synapse_version: v1.50.1
-matrix_synapse_version_arm64: v1.50.1
+matrix_synapse_version: v1.50.2
+matrix_synapse_version_arm64: v1.50.2
 matrix_synapse_docker_image_tag: "{{ matrix_synapse_version if matrix_architecture in ['arm32', 'amd64'] else matrix_synapse_version_arm64 }}"
 matrix_synapse_docker_image_force_pull: "{{ matrix_synapse_docker_image.endswith(':latest') }}"