use cbake actions, deprecate ubuntu 20.04 runners

Author: Marc-André Moreau

.github/workflows/nuget-publish.yml

@@ -61,11 +61,11 @@ jobs:
           - os: osx
             runner: macos-14
           - os: linux
-            runner: ubuntu-20.04
+            runner: ubuntu-22.04
           - os: ios
             runner: macos-14
           - os: android
-            runner: ubuntu-20.04
+            runner: ubuntu-22.04
         exclude:
           - arch: arm
             os: win
@@ -160,15 +160,6 @@ jobs:
         if: ${{ matrix.os == 'linux' }}
         run: sudo apt update
 
-      # We need a newer version of GCC because aws-lc-rs rejects versions affected
-      # by this bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189
-      # These lines can be safely removed once we switch to ubuntu-22.04 runner.
-      - name: Install GCC 10.x
-        if: ${{ matrix.os == 'linux' }}
-        run: |
-          sudo apt install gcc-10
-          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 60
-
       - name: Install dependencies for rustls
         if: ${{ runner.os == 'Windows' }}
         shell: pwsh
@@ -199,6 +190,18 @@ jobs:
         if: ${{ matrix.os == 'android' }}
         run: sudo apt install gcc-multilib
 
+      - name: Setup LLVM
+        uses: Devolutions/actions-public/setup-llvm@cbake
+        if: matrix.os == 'linux'
+        with:
+          version: "18.1.8"
+
+      - name: Setup CBake
+        uses: Devolutions/actions-public/setup-cbake@cbake
+        if: matrix.os == 'linux'
+        with:
+          cargo_env_scripts: true
+
       - name: Build native lib (${{matrix.os}}-${{matrix.arch}})
         shell: pwsh
         run: |
@@ -226,12 +229,6 @@ jobs:
             $Env:RUSTFLAGS="-C target-feature=+crt-static"
           }
 
-          if ($RustTarget -eq 'aarch64-unknown-linux-gnu') {
-            sudo apt update
-            sudo apt install gcc-aarch64-linux-gnu
-            $Env:RUSTFLAGS="-C linker=aarch64-linux-gnu-gcc"
-          }
-
           $ProjectVersion = '${{ needs.preflight.outputs.project-version }}'
           $PackageVersion = '${{ needs.preflight.outputs.package-version }}'
 
@@ -241,6 +238,13 @@ jobs:
           }
           Set-Content -Path .\ffi\Cargo.toml -Value $CargoToml
 
+          if ($DotNetOs -eq 'linux') {
+            $LinuxArch = @{'x64'='amd64';'arm64'='arm64'}[$DotNetArch]
+            $Env:SYSROOT_NAME = "ubuntu-20.04-$LinuxArch"
+            . "$HOME/.cargo/cbake/${RustTarget}-enter.ps1"
+            $Env:AWS_LC_SYS_CMAKE_BUILDER="true"
+          }
+
           $CargoParams = @(
               "build",
               "-p", "ffi",
@@ -276,13 +280,8 @@ jobs:
       - name: Checkout ${{ github.repository }}
         uses: actions/checkout@v4
 
-      - name: Configure runner
-        shell: pwsh
-        run: |
-          wget -q https://github.com/awakecoding/llvm-prebuilt/releases/download/v2023.3.0/cctools-x86_64-ubuntu-22.04.tar.xz
-          tar -xf cctools-x86_64-ubuntu-22.04.tar.xz -C /tmp
-          sudo mv /tmp/cctools-x86_64-ubuntu-22.04/bin/lipo /usr/local/bin
-          sudo mv /tmp/cctools-x86_64-ubuntu-22.04/bin/install_name_tool /usr/local/bin
+      - name: Setup CCTools
+        uses: Devolutions/actions-public/setup-cctools@cbake
 
       - name: Download native components
         uses: actions/download-artifact@v4