Add submodule support to `publish.yaml` #838

Job	Run time
mono_repo self validate	14s
analyze_and_format; Dart 3.0.0; PKGS: pkgs/corpus, pkgs/dart_flutter_team_lints, pkgs/firehose, p...	31s
analyze_and_format; Dart dev; PKGS: pkgs/corpus, pkgs/dart_flutter_team_lints, pkgs/firehose, pkg...	30s
analyze_and_format; Dart dev; PKGS: pkgs/corpus, pkgs/dart_flutter_team_lints, pkgs/firehose, pkg...	23s
unit_test; Dart dev; PKG: pkgs/corpus; `dart test`	36s
unit_test; Dart 3.0.0; PKG: pkgs/firehose; `dart test`	31s
unit_test; Dart 3.0.0; PKG: pkgs/dart_flutter_team_lints; `dart test`	26s
unit_test; Dart 3.0.0; PKG: pkgs/corpus; `dart test`	38s
unit_test; Dart dev; PKG: pkgs/dart_flutter_team_lints; `dart test`	25s
unit_test; Dart dev; PKG: pkgs/firehose; `dart test`	23s
analyze_format; Dart dev; PKG: pkgs/blast_repo; `dart format --output=none --set-exit-if-changed ...	22s
test; Dart dev; PKG: pkgs/blast_repo; `dart test --test-randomize-ordering-seed=random`	26s
	5m 25s

Provide feedback