Update CI.yml to remove architecture from job

Removed architecture specification from CI job for Julia.

Author: juliohm

.github/workflows/CI.yml

@@ -12,7 +12,7 @@ concurrency:
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 jobs:
   test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -24,14 +24,11 @@ jobs:
           - ubuntu-latest
           - macos-latest
           - windows-latest
-        arch:
-          - x64
     steps:
       - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
       - uses: actions/cache@v5
         env:
           cache-name: cache-artifacts