tests: shell: Rename 0025named_limit_0 to 0026named_limit_0

This renames file 0025named_limit_0 to 0026named_limit_0, there is
already a test whose prefix is 0025.

Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/tests/shell/testcases/sets/0025named_limit_0 b/tests/shell/testcases/sets/0026named_limit_0
similarity index 100%
rename from tests/shell/testcases/sets/0025named_limit_0
rename to tests/shell/testcases/sets/0026named_limit_0