Remove deprecated architectures from build.yaml

Author: mdegat01

build.yaml

@@ -1,10 +1,7 @@
 image: ghcr.io/home-assistant/{arch}-hassio-multicast
 build_from:
   aarch64: ghcr.io/home-assistant/aarch64-base:3.22
-  armhf: ghcr.io/home-assistant/armhf-base:3.22
-  armv7: ghcr.io/home-assistant/armv7-base:3.22
   amd64: ghcr.io/home-assistant/amd64-base:3.22
-  i386: ghcr.io/home-assistant/i386-base:3.22
 cosign:
   base_identity: https://github.com/home-assistant/docker-base/.*
   identity: https://github.com/home-assistant/plugin-multicast/.*