chore: prepare release 2.13.0

Author: github-actions[bot]

.changeset/removed_unused_ephemeral_and_created_maps_in_revert_path.md

@@ -1,3 +1,17 @@
+## 2.13.0 (2026-05-19)
+
+### Features
+
+- Update Go to 1.26.0.
+
+### Fixes
+
+- Removed unused ephemeral and created maps in revert path
+- Update core dependency to v0.19.0 and coreutils dependency to v0.21.0.
+- Update core to 0.20.0.
+- Update coreutils to 0.21.3.
+- Update coreutils from v0.21.0 to v0.21.1
+
 ## 2.12.0 (2026-02-05)
 
 ### Features

.changeset/update_core_dependency_from_0175_to_0210.md

@@ -1,4 +1,4 @@
-module go.sia.tech/walletd/v2 // v2.12.0
+module go.sia.tech/walletd/v2 // v2.13.0
 
 go 1.26.0