Fix beebasm build to use tags instead of branches for versioned builds

The beebasm versions (v1.09, v1.10, v1.11) are tags, not branches,
so get_remote_revision needs to use tags/ ref type for versioned builds
while keeping heads/ for trunk builds.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: partouf

misc/build-beebasm.sh

@@ -7,16 +7,18 @@ VERSION=$1
 if [[ "${VERSION}" = "trunk" ]]; then
     VERSION=trunk-$(date +%Y%m%d)
     BRANCH=master
+    REF_TYPE=heads
 else
     BRANCH=v${VERSION}
+    REF_TYPE=tags
 fi
 
 URL=https://github.com/stardot/beebasm
 
 FULLNAME=beebasm-${VERSION}.tar.xz
 OUTPUT=$2/${FULLNAME}
 
-REVISION="beebasm-$(get_remote_revision "${URL}" "heads/${BRANCH}")"
+REVISION="beebasm-$(get_remote_revision "${URL}" "${REF_TYPE}/${BRANCH}")"
 LAST_REVISION="${3:-}"
 
 initialise "${REVISION}" "${OUTPUT}" "${LAST_REVISION}"