Update instructions for trebuchet #1125

Job	Run time
mono_repo self validate	14s
analyze_and_format; Dart 3.5.0; PKGS: pkgs/dart_flutter_team_lints, pkgs/firehose; `dart analyze ...	21s
analyze_and_format; Dart 3.3.0; PKG: pkgs/repo_manage; `dart analyze --fatal-infos .`	22s
analyze_and_format; Dart 3.1.0; PKG: pkgs/corpus; `dart analyze --fatal-infos .`	28s
analyze_and_format; Dart 3.4.0; PKG: pkgs/sdk_triage_bot; `dart analyze --fatal-infos .`	20s
analyze_and_format; Dart dev; PKGS: pkgs/corpus, pkgs/dart_flutter_team_lints, pkgs/firehose, pkg...	35s
analyze_and_format; Dart dev; PKGS: pkgs/corpus, pkgs/dart_flutter_team_lints, pkgs/firehose, pkg...	24s
unit_test; Dart 3.1.0; PKG: pkgs/corpus; `dart test`	40s
unit_test; Dart 3.5.0; PKG: pkgs/firehose; `dart test`	2m 5s
unit_test; Dart 3.5.0; PKG: pkgs/dart_flutter_team_lints; `dart test`	19s
unit_test; Dart 3.4.0; PKG: pkgs/sdk_triage_bot; `dart test`	30s
unit_test; Dart dev; PKG: pkgs/corpus; `dart test`	32s
unit_test; Dart dev; PKG: pkgs/firehose; `dart test`	2m 8s
unit_test; Dart dev; PKG: pkgs/dart_flutter_team_lints; `dart test`	22s
unit_test; Dart dev; PKG: pkgs/sdk_triage_bot; `dart test`	30s
analyze_format; Dart dev; PKG: pkgs/blast_repo; `dart format --output=none --set-exit-if-changed ...	19s
test; Dart dev; PKG: pkgs/blast_repo; `dart test --test-randomize-ordering-seed=random`	22s
	10m 31s

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