Add ENABLE_JAAS_COMPONENTS to Jitsi

Related to https://github.com/jitsi/docker-jitsi-meet/issues/1377

Adding this doesn't really help though. `stable-7648-2` is broken
regardless. `stable-7648-3` is necessary to make it work.

We're already updated to `-3` anyway. This just adds the missing
environment variable for completeness.

roles/matrix-jitsi/defaults/main.yml

@@ -9,6 +9,7 @@ matrix_jitsi_enable_auth: false
 matrix_jitsi_enable_guests: false
 matrix_jitsi_enable_recording: false
 matrix_jitsi_enable_transcriptions: false
+matrix_jitsi_enable_jaas_components: false
 matrix_jitsi_enable_p2p: true
 matrix_jitsi_enable_av_moderation: true
 matrix_jitsi_enable_breakout_rooms: true

roles/matrix-jitsi/templates/web/env.j2

@@ -57,6 +57,7 @@ ENABLE_TALK_WHILE_MUTED
 ENABLE_TCC
 ENABLE_TRANSCRIPTIONS={{ 1 if matrix_jitsi_enable_transcriptions else 0 }}
 ENABLE_XMPP_WEBSOCKET
+ENABLE_JAAS_COMPONENTS={{ 1 if matrix_jitsi_enable_jaas_components else false }}
 ETHERPAD_PUBLIC_URL
 ETHERPAD_URL_BASE={{ (matrix_jitsi_etherpad_base + '/') if matrix_jitsi_etherpad_enabled else ''}}
 GOOGLE_ANALYTICS_ID