feat: Use Arc instead of & for protocol_state in Swap

- dealing with lifetimes makes refactoring painful for our users.

src/encoding/evm/tycho_encoders.rs

@@ -422,7 +422,7 @@ mod tests {
     // Fee and tick spacing information for this test is obtained by querying the
     // USV4 Position Manager contract: 0xbd216513d74c8cf14cf4747e6aaa6420ff64ee9e
     // Using the poolKeys function with the first 25 bytes of the pool id
-    fn swap_usdc_eth_univ4() -> Swap<'static> {
+    fn swap_usdc_eth_univ4() -> Swap {
         let pool_fee_usdc_eth = Bytes::from(BigInt::from(3000).to_signed_bytes_be());
         let tick_spacing_usdc_eth = Bytes::from(BigInt::from(60).to_signed_bytes_be());
         let mut static_attributes_usdc_eth: HashMap<String, Bytes> = HashMap::new();
@@ -442,7 +442,7 @@ mod tests {
         .build()
     }
 
-    fn swap_eth_pepe_univ4() -> Swap<'static> {
+    fn swap_eth_pepe_univ4() -> Swap {
         let pool_fee_eth_pepe = Bytes::from(BigInt::from(25000).to_signed_bytes_be());
         let tick_spacing_eth_pepe = Bytes::from(BigInt::from(500).to_signed_bytes_be());
         let mut static_attributes_eth_pepe: HashMap<String, Bytes> = HashMap::new();