Add Fedora 41 and remove Fedora 39 from tests

Signed-off-by: RD WebDesign <github@rdwebdesign.com.br>

test/_fedora_41.Dockerfile

@@ -1,4 +1,4 @@
-FROM fedora:39
+FROM fedora:41
 RUN dnf install -y git initscripts
 
 ENV GITDIR=/etc/.pihole

test/tox.fedora_41.ini

@@ -6,5 +6,5 @@ allowlist_externals = docker
 deps = -rrequirements.txt
 setenv =
     COLUMNS=120
-commands = docker buildx build --load --progress plain -f _fedora_39.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _fedora_41.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py