Add missing 5.3 changesets (#5614)

Author: ernestognw

.changeset/little-ads-kick.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC7579Utils`: Replace `address(0)` with `address(this)` during execution for calldata compression efficiency.

.changeset/many-tables-tan.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC4337Utils`: Update the `hash` function to call `getUserOpHash` on the specified entrypoint and add an `ENTRYPOINT_V08` constant.

CHANGELOG.md

@@ -9,6 +9,7 @@
 #### Custom error changes
 
 - Replace `GovernorAlreadyOverridenVote` with `GovernorAlreadyOverriddenVote`.
+- Replace `GovernorOnlyProposer` with `GovernorUnableToCancel`.
 
 ### Changes by category