ci(toolchains): Use docker export-import instead of load-save

Intended to address:

  open /var/lib/docker/tmp/docker-import-2294564057/repositories: no such file or directory

Author: thewtex

.github/workflows/toolchains.yml

@@ -28,14 +28,14 @@ jobs:
         if [[ -e ./docker-cache/itk-wasm-emscripten-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-emscripten-base.tar.xz | docker load ; fi
         ./src/docker/itk-wasm-base/build.sh
         mkdir -p ./docker-cache
-        docker save itkwasm/emscripten-base:latest | xz -e9 -T0 > ./docker-cache/itk-wasm-emscripten-base.tar.xz
+        docker export itkwasm/emscripten-base:latest | xz -e9 -T0 > ./docker-cache/itk-wasm-emscripten-base.tar.xz
 
     - name: Build itk-wasm-base
       run: |
         if [[ -e ./docker-cache/itk-wasm-wasi-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-wasi-base.tar.xz | docker load ; fi
         ./src/docker/itk-wasm-base/build.sh --with-wasi
         mkdir -p ./docker-cache
-        docker save itkwasm/wasi-base:latest | xz -e9 -T0 > ./docker-cache/itk-wasm-wasi-base.tar.xz
+        docker export itkwasm/wasi-base:latest | xz -e9 -T0 > ./docker-cache/itk-wasm-wasi-base.tar.xz
 
     - name: Cache docker results
       uses: actions/upload-artifact@v4
@@ -68,12 +68,10 @@ jobs:
     - name: Build itk-wasm
       run: |
         sudo mkdir -p /var/lib/docker/tmp
-        if [[ -e ./docker-cache/itk-wasm-emscripten-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-emscripten-base.tar.xz | docker load ; fi
-        if [[ -e ./docker-cache/itk-wasm-emscripten.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-emscripten.tar.xz | docker load ; fi
+        if [[ -e ./docker-cache/itk-wasm-emscripten-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-emscripten-base.tar.xz | docker import - itkwasm/emscripten:latest ; fi
         ./src/docker/itk-wasm/build.sh
 
     - name: Build itk-wasi
       run: |
-        if [[ -e ./docker-cache/itk-wasm-wasi-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-wasi-base.tar.xz | docker load ; fi
-        if [[ -e ./docker-cache/itk-wasm-wasi.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-wasi.tar.xz | docker load ; fi
+        if [[ -e ./docker-cache/itk-wasm-wasi-base.tar.xz ]]; then xz -d -k < ./docker-cache/itk-wasm-wasi-base.tar.xz | docker import - itkwasm/wasi:latest ; fi
         ./src/docker/itk-wasm/build.sh --with-wasi