bump middleware to track 1.3 release (#395)

Fixes #

### What Changed?
<!-- Describe the changes made in this pull request -->

### Reviewer Checklist

- [ ] New features are tested and documented
- [ ] PR updates the changelog with a description of changes
- [ ] PR has one of the `changelog-X` labels (if applies)
- [ ] Code deprecates any old functionality before removing it

Author: supernovahs

CHANGELOG.md

@@ -49,6 +49,8 @@ Those changes in added, changed or breaking changes, should include usage exampl
         .unwrap();
   ```
 
+  * Bump middleware to [v1.3.0-rc.0](https://github.com/Layr-Labs/eigenlayer-middleware/releases/tag/v1.3.0-rc.0) [#395](https://github.com/Layr-Labs/eigensdk-rs/pull/395).
+
 ### Breaking Changes 🛠
 
 * Updated slashing bindings to [the v1.1.1 eigenlayer-middleware release](https://github.com/Layr-Labs/eigenlayer-middleware/releases/tag/v1.1.1-testnet-slashing) [#365](https://github.com/Layr-Labs/eigensdk-rs/pull/365)

crates/chainio/clients/avsregistry/src/writer.rs

@@ -1731,7 +1731,7 @@ mod tests {
             strategy: get_erc20_mock_strategy(http_endpoint.clone()).await,
             multiplier: U96::from(1),
         };
-        let look_ahead_period = 10;
+        let look_ahead_period = 0;
 
         let tx_hash = avs_writer
             .create_slashable_stake_quorum(

crates/m2_contracts/anvil/m2_contracts_deployed_anvil_state/state.json

@@ -46,6 +46,7 @@ library MockAvsDeploymentLib {
     using Strings for *;
     using UpgradeableProxyLib for address;
 
+    string internal constant MIDDLEWARE_VERSION = "v1.3.0-rc.0";
     Vm internal constant VM = Vm(address(uint160(uint256(keccak256("hevm cheat code")))));
 
     struct DeploymentData {
@@ -113,7 +114,8 @@ library MockAvsDeploymentLib {
                 IIndexRegistry(result.indexRegistry),
                 ISocketRegistry(result.socketRegistry),
                 IAllocationManager(core.allocationManager),
-                IPauserRegistry(core.pauserRegistry)
+                IPauserRegistry(core.pauserRegistry),
+                MIDDLEWARE_VERSION
             )
         );