docs: Update Remote Taskfiles default values

* docs: Update Remote Taskfiles default values

This change updates the documentation for [Remote Taskfiles > Configuration](https://taskfile.dev/docs/experiments/remote-taskfiles#configuration) for `timeout` and `cache-expiry` to match the defaults in code.

* docs: Update `cache-expiry` default to 0s

* docs: Update executor.go comment

Fix doc comment to indicate that cache expiry default duration is 0.

executor.go

@@ -240,7 +240,7 @@ func (o *timeoutOption) ApplyToExecutor(e *Executor) {
 }
 
 // WithCacheExpiryDuration sets the duration after which the cache is considered
-// expired. By default, the cache is considered expired after 24 hours.
+// expired. By default, the cache is 0 (disabled).
 func WithCacheExpiryDuration(duration time.Duration) ExecutorOption {
 	return &cacheExpiryDurationOption{duration: duration}
 }