Use the build job name instead of success in ci-checks for rustc_codegen_gcc

Author: antoyo

repos/rust-lang/rustc_codegen_gcc.toml

@@ -9,5 +9,5 @@ wg-gcc-backend = "maintain"
 
 [[branch-protections]]
 pattern = "master"
-ci-checks = ["success"]
+ci-checks = ["build"]
 required-approvals = 0