Follow the T2 firmware package through its rename

arch-mact2 dropped apple-bcm-firmware on 2026-09-16 and published
apple-bcm-firmware-fetcher in its place. The new package only conflicts
with the old name instead of replacing it, so pacman cannot follow the
rename and every nightly build has aborted with "target not found"
since 2026-09-17.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CRnZrQDE6jowz4KxmzusL8

builder/build-iso.sh

@@ -206,8 +206,15 @@ mapfile -t all_packages < <(
 # "target not found". Published Omarchy runtime packages that predate the rename
 # still list it in omarchy-other.packages, so map it here until every channel
 # ships a runtime that names broadcom-wl-dkms itself.
+# arch-mact2 dropped apple-bcm-firmware on 2026-09-16 in favour of
+# apple-bcm-firmware-fetcher, which does the same job (pull the T2 Wi-Fi and
+# Bluetooth firmware off the macOS volume) but only conflicts with the old name
+# rather than replacing it, so pacman cannot follow the rename on its own.
 mapfile -t all_packages < <(
-  printf '%s\n' "${all_packages[@]}" | sed 's/^broadcom-wl$/broadcom-wl-dkms/' | sort -u
+  printf '%s\n' "${all_packages[@]}" |
+    sed -e 's/^broadcom-wl$/broadcom-wl-dkms/' \
+      -e 's/^apple-bcm-firmware$/apple-bcm-firmware-fetcher/' |
+    sort -u
 )
 
 # With --local-source we already built these omarchy* packages directly into