Update dock.mau.dev/mautrix/discord Docker tag to v0.7.7

roles/custom/matrix-bridge-mautrix-discord/defaults/main.yml

@@ -21,7 +21,7 @@ matrix_bridge_mautrix_discord_container_image_self_build_repo: "https://mau.dev/
 matrix_bridge_mautrix_discord_container_image_self_build_branch: "{{ 'main' if matrix_bridge_mautrix_discord_version == 'latest' else matrix_bridge_mautrix_discord_version }}"
 
 # renovate: datasource=docker depName=dock.mau.dev/mautrix/discord
-matrix_bridge_mautrix_discord_version: v0.7.6
+matrix_bridge_mautrix_discord_version: v0.7.7
 
 # See: https://mau.dev/mautrix/discord/container_registry
 matrix_bridge_mautrix_discord_container_image: "{{ matrix_bridge_mautrix_discord_container_image_registry_prefix }}mautrix/discord:{{ matrix_bridge_mautrix_discord_version }}"