run it on arm

Author: panva

.github/workflows/test-shared.yml

@@ -197,7 +197,7 @@ jobs:
   # OpenSSL release version available in the repo-pinned nixpkgs. The default
   # shared `openssl` from tools/nix/sharedLibDeps.nix is overridden per matrix
   # entry, while all other shared libs remain at their defaults. Only runs on
-  # a single runner/system (x86_64-linux) to keep the matrix to a minimum.
+  # a single runner/system (aarch64-linux) to keep the matrix to a minimum.
   build-openssl:
     needs:
       - build-tarball
@@ -206,8 +206,8 @@ jobs:
       fail-fast: false
       matrix:
         openssl: ${{ fromJSON(needs.collect-openssl-versions.outputs.matrix) }}
-    name: 'x86_64-linux: with shared ${{ matrix.openssl.attr }} (${{ matrix.openssl.version }})'
-    runs-on: ubuntu-24.04
+    name: 'aarch64-linux: with shared ${{ matrix.openssl.attr }} (${{ matrix.openssl.version }})'
+    runs-on: ubuntu-24.04-arm
     continue-on-error: ${{ matrix.openssl['continue-on-error'] }}
     env:
       OPENSSL_ATTR: ${{ matrix.openssl.attr }}
@@ -219,7 +219,7 @@ jobs:
           sparse-checkout: .github/actions
       - uses: ./.github/actions/build-shared
         with:
-          system: x86_64-linux
+          system: aarch64-linux
           cachix-auth-token: ${{ secrets.CACHIX_AUTH_TOKEN }}
           # Override just the `openssl` attr of the default shared-lib set with
           # the matrix-selected nixpkgs attribute (e.g. `openssl_3_6`). All