Remove Red Hat 10 i686 build

Author: pepone

.github/workflows/build-rpm-release.yml

@@ -34,10 +34,6 @@ jobs:
             arch: x86_64
             image: ghcr.io/zeroc-ice/mcpp-rpm-package-builder-x86_64-rhel10:latest
 
-          - distribution: rhel10
-            arch: i686
-            image: ghcr.io/zeroc-ice/mcpp-rpm-package-builder-x86_64-rhel10:latest
-
           - distribution: rhel10
             arch: aarch64
             image: ghcr.io/zeroc-ice/mcpp-rpm-package-builder-aarch64-rhel10:latest