chore: release notes++

Author: alexanderbez

RELEASE_NOTES.md

@@ -1,13 +1,10 @@
-# Cosmos SDK v0.45.3 Release Notes
+# Cosmos SDK v0.45.4 Release Notes
 
-This release introduces a Tendermint dependency update to v0.34.19 which
-itself includes two bug fixes related to consensus. See the full changelog from
-v0.34.17-v0.34.19 [here](https://github.com/tendermint/tendermint/blob/v0.34.19/CHANGELOG.md#v0.34.19).
+This release introduces a few bug fixes and improvements. Notably, it adds an
+error check to the `NewNode` call in the `server` package, which would allow nodes
+to sync correctly.
 
-In addition, it includes a change to `ScheduleUpgrade` to allow upgrades without
-requiring a governance proposal process.
-
-See the [Cosmos SDK v0.45.3 Changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.45.3/CHANGELOG.md)
+See the [Cosmos SDK v0.45.4 Changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.45.4/CHANGELOG.md)
 for the exhaustive list of all changes.
 
-**Full Commit History**: https://github.com/cosmos/cosmos-sdk/compare/v0.45.2...v0.45.3
+**Full Commit History**: https://github.com/cosmos/cosmos-sdk/compare/v0.45.3...v0.45.4