add workflow trigger for bridge e2e tests #4679

Job	Run time
set-tags	5s
check-copyright	4s
cargo-toml-feature-propagation	15s
build	1s
cargo-clippy	1s
Check with rustfmt	14s
toml-formatting	13s
typescript-linting	16s
typescript-formatting	17s
typescript-tests	1s
rust-test	1s
check-api-augment	1s
Check WASM runtimes with Twiggy	1s
typescript-dancebox-specs	1s
typescript-tests-flashbox	1s
typescript-tests-frontier	1s
typescript-tests-simple-template	1s
chopsticks-upgrade-test	1s
typescript-tests-relay	1s
zombienet-tests	1s
zombienet-test-upgrade	1s
zombienet-test-upgrade-containers	1s
docker-tanssi	1s
zombienet-test-upgrade-starlight	1s
	1m 41s

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