migrated to fedora 43 from rawhide to fix build issues

toolboxes/Dockerfile.rocm-7rc

@@ -1,5 +1,7 @@
 # build
-FROM registry.fedoraproject.org/fedora:rawhide AS builder
+FROM registry.fedoraproject.org/fedora:43 AS builder
+# Toggle llama.cpp PR 15405 (RPC perf for large models)
+ARG APPLY_LLAMA_PR_15405=1
 
 RUN dnf -y --nodocs --setopt=install_weak_deps=False install \
        make gcc cmake lld clang clang-devel compiler-rt libcurl-devel \
@@ -55,6 +57,12 @@ RUN printf '%s\n' \
 WORKDIR /opt/llama.cpp
 RUN git clone --recursive https://github.com/ggerganov/llama.cpp.git . \
  && git clean -xdf \
+ && if [ "${APPLY_LLAMA_PR_15405}" = "1" ]; then \
+      git config user.email "builder@localhost"; \
+      git config user.name "Container Builder"; \
+      git fetch origin pull/15405/head:pr-15405; \
+      git merge --no-edit pr-15405; \
+    fi \
  && git submodule update --recursive
 
 RUN cmake -S . -B build \
@@ -73,7 +81,7 @@ RUN find /opt/rocm-7.0 -type f -name '*.a' -delete \
  && rm -rf /opt/llama.cpp
 
 # runtime
-FROM registry.fedoraproject.org/fedora-minimal:rawhide
+FROM registry.fedoraproject.org/fedora-minimal:43
 
 RUN microdnf -y --nodocs --setopt=install_weak_deps=0 install \
       bash ca-certificates libatomic libstdc++ libgcc radeontop vim \