Snowbridge - Extract Ethereum Chain ID (#3501)

While adding runtime tests to
https://github.com/polkadot-fellows/runtimes/pull/130, I noticed the
Ethereum chain ID was hardcoded. For Kusama + Polkadot, the Ethereum
chain ID should 1 (Mainnet), whereas on Rococo it is 11155111 (Sepolia).

This PR also updates the Snowbridge crates versions to the current
versions on crates.io.

---------

Co-authored-by: claravanstaden <Cats 4 life!>

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/tests/snowbridge.rs

@@ -51,6 +51,7 @@ fn collator_session_keys() -> bridge_hub_test_utils::CollatorSessionKeys<Runtime
 #[test]
 pub fn transfer_token_to_ethereum_works() {
 	snowbridge_runtime_test_common::send_transfer_token_message_success::<Runtime, XcmConfig>(
+		11155111,
 		collator_session_keys(),
 		1013,
 		1000,
@@ -69,6 +70,7 @@ pub fn transfer_token_to_ethereum_works() {
 #[test]
 pub fn unpaid_transfer_token_to_ethereum_fails_with_barrier() {
 	snowbridge_runtime_test_common::send_unpaid_transfer_token_message::<Runtime, XcmConfig>(
+		11155111,
 		collator_session_keys(),
 		1013,
 		1000,
@@ -80,6 +82,7 @@ pub fn unpaid_transfer_token_to_ethereum_fails_with_barrier() {
 #[test]
 pub fn transfer_token_to_ethereum_fee_not_enough() {
 	snowbridge_runtime_test_common::send_transfer_token_message_failure::<Runtime, XcmConfig>(
+		11155111,
 		collator_session_keys(),
 		1013,
 		1000,
@@ -95,6 +98,7 @@ pub fn transfer_token_to_ethereum_fee_not_enough() {
 #[test]
 pub fn transfer_token_to_ethereum_insufficient_fund() {
 	snowbridge_runtime_test_common::send_transfer_token_message_failure::<Runtime, XcmConfig>(
+		11155111,
 		collator_session_keys(),
 		1013,
 		1000,
@@ -146,6 +150,7 @@ pub fn ethereum_outbound_queue_processes_messages_before_message_queue_works() {
 		XcmConfig,
 		AllPalletsWithoutSystem,
 	>(
+		11155111,
 		collator_session_keys(),
 		1013,
 		1000,