ci: Fix linux-i686 artifact name (previously linux-x86)

Author: encounter

.github/workflows/build.yml

@@ -88,7 +88,7 @@ jobs:
             build: zigbuild
           - platform: ubuntu-latest
             target: i686-unknown-linux-musl
-            name: linux-x86
+            name: linux-i686
             build: zigbuild
           - platform: ubuntu-latest
             target: aarch64-unknown-linux-musl