fix: add indexed keyword in events (#1022)

Author: Kogaroshi

src/spoke/interfaces/ISpoke.sol

@@ -118,7 +118,7 @@ interface ISpoke is ISpokeBase, IMulticall, INoncesKeyed, IAccessManaged {
 
   /// @notice Emitted when the oracle address of the spoke is updated.
   /// @param oracle The new address of the oracle.
-  event UpdateOracle(address oracle);
+  event UpdateOracle(address indexed oracle);
 
   /// @notice Emitted when a liquidation config is updated.
   /// @param config The new liquidation config.

src/spoke/interfaces/ISpokeConfigurator.sol

@@ -11,7 +11,7 @@ interface ISpokeConfigurator {
   /// @notice Emitted when the maximum allowed number of reserves for a spoke is updated.
   /// @param spoke The address of the spoke.
   /// @param maxReserves The new maximum number of reserves.
-  event UpdateMaxReserves(address spoke, uint256 maxReserves);
+  event UpdateMaxReserves(address indexed spoke, uint256 maxReserves);
 
   /// @dev Thrown upon adding a reserve when the maximum allowed number of reserves is already reached.
   /// @param spoke The address of the spoke.