Tramp: Don't offer non-existing containers in completion

Tramp: Don't offer non-existing containers in completion

* doc/misc/tramp.texi (File name completion):
Explain "completion-use-cache" property.

* lisp/net/tramp-cache.el (tramp-get-method-parameter): Declare.
(tramp-get-hash-table): Mark connection properties.
(tramp-dump-connection-properties): Remove empty lists.
(tramp-parse-connection-properties): Take connection property
"completion-use-cache" into account.  (Bug#76950)

* lisp/net/tramp-container.el (tramp-methods) <docker, dockercp, podman>
<podmancp, kubernetes, toolbox, distrobox, flatpak, apptainer, nspawn>:
Add `tramp-completion-use-cache' argument.

(cherry picked from commit 13a043fec95f9f6b9721b3c6ff0a3248b14d40cc)