Exclude Fedora 41 from the build job

Starting with systemd version 253 or 254 (I'm not sure which) it is no
longer possible to start systemd-resolved.service under QEMU
emulation.  We support this case, but we cannot test it until we have
native ARM64 runners.

See issue #10 for more details.

.github/workflows/build.yml

@@ -198,6 +198,8 @@ jobs:
               platform: fedora39-systemd
             - architecture: arm64
               platform: fedora40-systemd
+            - architecture: arm64
+              platform: fedora41-systemd
             - architecture: arm64
               platform: kali-systemd
             - architecture: arm64