cli/command: deprecate WithContentTrustFromEnv, WithContentTrust

These options were used internally as defaults for the constructor and
only impact commands implemented in the CLI itself.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/cli_options_test.go

@@ -10,7 +10,7 @@ import (
 func contentTrustEnabled(t *testing.T) bool {
 	t.Helper()
 	var cli DockerCli
-	assert.NilError(t, WithContentTrustFromEnv()(&cli))
+	assert.NilError(t, withContentTrustFromEnv()(&cli))
 	return cli.contentTrust
 }