bra: Ignore wildcard generated go files (#51399)

.bra.toml

@@ -13,7 +13,7 @@ watch_dirs = [
   "$WORKDIR/conf",
 ]
 watch_exts = [".go", ".ini", ".toml", ".template.html"]
-ignore_files = ["wire_gen.go", "coremodel_gen.go", "registry_gen.go"]
+ignore_files = [".*_gen.go"]
 build_delay = 1500
 cmds = [
   ["make", "gen-go"],