CI: migrate artifact actions to v4 and limit toolchain CI to x86 samples

.github/workflows/continuous-integration-workflow.yml

@@ -37,12 +37,12 @@ jobs:
           make install
           tar -cf ct-ng.tar .local/
       - name: "upload ct-ng"
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: crosstool.${{ matrix.host }}
           path: ct-ng.tar
       - name: "upload config.log"
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: config.log.${{ matrix.host }}
           path: config.log
@@ -58,30 +58,9 @@ jobs:
           "ubuntu-latest",
         ]
         sample: [
-          "aarch64-unknown-linux-gnu",
-          "arc-multilib-linux-uclibc",
-          "arm-picolibc-eabi",
-          "arm-unknown-linux-gnueabi",
-          "armv6-nommu-linux-uclibcgnueabi",
-          "mips-unknown-elf",
-          "mips64-unknown-linux-gnu",
-          "powerpc-unknown-linux-gnu",
-          "powerpc64-unknown-linux-gnu",
-          "riscv32-unknown-elf",
-          "riscv64-unknown-elf",
-          "s390-unknown-linux-gnu",
-          "sh-multilib-linux-gnu",
-          "sparc-unknown-linux-gnu",
           "x86_64-unknown-linux-gnu",
-          "x86_64-multilib-linux-uclibc",
-          "xtensa-fsf-linux-uclibc"
+          "x86_64-multilib-linux-uclibc"
         ]
-        exclude:
-          # Exclude mips64-*-linux-gnu because of <byteswap.h> usage in
-          # elf-entry.c for linux kernel headers.  <byteswap.h> is a GNU
-          # extension and doesn't exist on MacOS X
-          - host: "macos-10.15"
-            sample: "mips64-unknown-linux-gnu"
     steps:
       - name: Create case sensitive workspace volume for macOS
         if: ${{ runner.os == 'macOS' }}
@@ -92,7 +71,7 @@ jobs:
           hdiutil mount ${HOME}/Workspace.sparseimage -mountroot /Users/runner/work/crosstool-ng
           cd crosstool-ng
       - name: "download ct-ng"
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: crosstool.${{ matrix.host }}
       - name: "extract ct-ng"
@@ -118,7 +97,7 @@ jobs:
           sed -i -e '/CT_PREFIX_DIR/s/HOME/CT_TOP_DIR/' .config
           ct-ng build
       - name: "upload log"
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: "${{ matrix.sample }}.${{ matrix.host }}.log"
           path: |