Add pallet staking tests for starlight (typescript) #5018

Job	Run time
set-tags	7s
check-copyright	6s
Check with rustfmt	14s
cargo-clippy	10m 16s
build	6m 16s
cargo-toml-feature-propagation	1m 55s
toml-formatting	54s
typescript-formatting	18s
typescript-linting	20s
Check WASM runtimes with Twiggy	1m 25s
rust-test	13m 44s
typescript-tests	4m 10s
check-api-augment	1m 14s
typescript-dancebox-specs	36s
typescript-tests-flashbox	3m 47s
typescript-tests-frontier	3m 59s
typescript-tests-relay	3m 52s
typescript-tests-simple-template	2m 20s
chopsticks-upgrade-test (stagenet_dancebox, dancebox)	58s
zombienet-tests (zombie_tanssi)	9m 27s
chopsticks-upgrade-test (flashbox, flashbox)	1m 23s
zombienet-test-upgrade (dancebox)	3m 50s
zombienet-tests (zombie_tanssi_parathreads)	15m 4s
chopsticks-upgrade-test (dancebox, dancebox)	54s
zombienet-tests (zombie_tanssi_rotation)	8m 23s
chopsticks-upgrade-test (frontier_template, container-chain-template-frontier)	59s
zombienet-test-upgrade-containers (frontier_template, container-chain-template-frontier)	5m 22s
zombienet-tests (zombie_tanssi_warp_sync)	6m 50s
chopsticks-upgrade-test (stagelight, dancelight)	1m 20s
zombienet-test-upgrade-containers (simple_template, container-chain-template-simple)	5m 15s
zombienet-tests (zombie_tanssi_relay)	10m 28s
zombienet-tests (zombie_data_preservers)	13m 40s
zombienet-test-upgrade-starlight (dancelight, dancelight)	1m 38s
docker-tanssi (tanssi)	1m 1s
docker-tanssi (container-chain-simple-template)	43s
docker-tanssi (container-chain-evm-template)	1m 7s
docker-tanssi (starlight)	1m 2s
	2h 24m 57s

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