chore: upgrade lasuite-drive redis to 8.10.2, collabora to 26.04.4.1.1

collabora 26.04 images exec coolwsd directly (--use-env-vars; no shell in the
image), so the sh/start-collabora-online.sh entrypoint and extra_params env are
gone: ssl options move to command args, the healthcheck switches to
coolwsd --probe, and the admin panel password moves from the collabora_p
docker secret to the COLLABORA_ADMIN_PASSWORD env var (empty = locked).

redis 8.10.2 is a security release (transaction ACL-revocation bypass,
unauthenticated cluster-bus join; cache sidecar, no cluster mode here).

.env.sample

@@ -28,8 +28,6 @@ SECRET_MINIO_RU_VERSION=v1
 SECRET_POSTGRES_P_VERSION=v1
 # DJANGO_HOST_EMAIL_PASSWORD
 SECRET_EMAIL_PASS_VERSION=v1
-# COLLABORA_ADMIN_PASSWORD
-SECRET_COLLABORA_P_VERSION=v1
 
 ##############################################################################
 # EMAIL
@@ -77,9 +75,12 @@ LOGGING_LEVEL_LOGGERS_APP=INFO
 ##############################################################################
 # COLLABORA ADMIN PANEL
 ##############################################################################
-# Username for the Collabora admin panel (https://COLLABORA_DOMAIN/browser/dist/admin/admin.html)
-# Password is managed via Docker secret 'collabora_p'
+# Credentials for the Collabora admin panel (https://COLLABORA_DOMAIN/browser/dist/admin/admin.html)
+# Since collabora 26.04 (image execs coolwsd directly; no shell in the image), the panel
+# password moved from the retired Docker secret 'collabora_p' to this env var.
+# Empty/unset = panel stays locked.
 #COLLABORA_ADMIN_USERNAME=admin
+#COLLABORA_ADMIN_PASSWORD=
 
 ##############################################################################
 # BACKUPS