Update .env

Sync .env with upstream : LycheeOrg/Lychee#3004

>> Now : CACHE_DRIVER=redis

Author: DeMiro5001

conf/.env

@@ -86,9 +86,21 @@ LYCHEE_DIST_URL="__PATH__/dist/"
 # Support for token based authentication used by API requests. Enabled by default.
 # ENABLE_TOKEN_AUTH=true
 
-CACHE_DRIVER=file
+# Lychee supports both Redis and file caching.
+# To use Redis, set CACHE_DRIVER to redis and configure the Redis connection.
+CACHE_DRIVER=redis
+
+# REDIS_URL=redis://<username>:<password>@<host>:<port>
+
+# If you use Redis as cache driver, we strongly recommend
+# to disable it for your Log Viewer.
+# Should redis crash, you will no longer be able to access your logs.
+LOG_VIEWER_CACHE_DRIVER=file
+
+# Session configuration
 SESSION_DRIVER=file
 SESSION_LIFETIME=120
+
 # `sync` if jobs needs to be executed live (default) or `database` if they can be defered.
 QUEUE_CONNECTION=sync