ci: Use distro toolchain for loongarch64-unknown-linux-gnu

Author: heiher

ci/docker/loongarch64-unknown-linux-gnu/Dockerfile

@@ -1,16 +1,11 @@
 FROM ubuntu:24.04
-RUN \
-  apt-get update && \
-  apt-get install -y --no-install-recommends gcc libc6-dev ca-certificates wget xz-utils && \
-  wget "https://github.com/loongson/build-tools/releases/download/2024.08.08/x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0.tar.xz" && \
-  tar -xvf x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0.tar.xz -C / && \
-  rm x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0.tar.xz && \
-  wget "https://github.com/loongson/build-tools/releases/download/2024.08.08/x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0-glibc_2.40.tar.xz" && \
-  tar -xvf x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0-glibc_2.40.tar.xz -C / && \
-  rm x86_64-cross-tools-loongarch64-binutils_2.43-gcc_14.2.0-glibc_2.40.tar.xz && \
-  wget "https://github.com/loongson/build-tools/releases/download/2023.08.08/qemu-loongarch64" && \
-  install -m 755 qemu-loongarch64 /cross-tools/bin/qemu-loongarch64 && \
-  rm qemu-loongarch64
-ENV \
-  CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_LINKER="/cross-tools/bin/loongarch64-unknown-linux-gnu-gcc" \
-  CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_RUNNER="/cross-tools/bin/qemu-loongarch64 -L /cross-tools/target -E LD_LIBRARY_PATH=/cross-tools/loongarch64-unknown-linux-gnu/lib"
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    gcc libc6-dev qemu-user-static ca-certificates \
+    gcc-14-loongarch64-linux-gnu libc6-dev-loong64-cross
+
+
+ENV CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_LINKER=loongarch64-linux-gnu-gcc-14 \
+    CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_RUNNER="qemu-loongarch64-static -L /usr/loongarch64-linux-gnu" \
+    OBJDUMP=loongarch64-linux-gnu-objdump