Don't test 8.4 on i386

Author: oschwald

.github/workflows/test.yml

@@ -16,6 +16,11 @@ jobs:
         operating-system: [ubuntu-latest]
         php-versions: ['7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
         php-extensions: ['bcmath', 'gmp']
+        exclude:
+          # We are getting weird libxml2 failures on this combo
+          - arch: "i386"
+            php-versions: 8.4
+
     name: "PHP ${{ matrix.php-versions }} (with ${{ matrix.php-extensions }}) test on ${{ matrix.operating-system }}/${{ matrix.arch }}"
     steps:
       - name: Install PHP