chore(x/tx): update changelog to alpha.2 (#22465)

Author: JulianToledano

x/tx/CHANGELOG.md

@@ -33,12 +33,15 @@ Since v0.13.0, x/tx follows Cosmos SDK semver: https://github.com/cosmos/cosmos-
 
 ## [Unreleased]
 
+## [v1.0.0-alpha.2](https://github.com/cosmos/cosmos-sdk/releases/tag/x/tx/v1.0.0-alpha.2) - 2024-11-01
+
+* [#22311](https://github.com/cosmos/cosmos-sdk/pull/22311) Fix add feePayer as signer.
+
 ## [v1.0.0-alpha.1](https://github.com/cosmos/cosmos-sdk/releases/tag/x/tx/v1.0.0-alpha.1) - 2024-10-17
 
 * [#21782](https://github.com/cosmos/cosmos-sdk/pull/21782) Fix JSON attribute sort order on messages with oneof fields.
 * [#21825](https://github.com/cosmos/cosmos-sdk/pull/21825) Fix decimal encoding and field ordering in Amino JSON encoder.
 * [#21850](https://github.com/cosmos/cosmos-sdk/pull/21850) Support bytes field as signer.
-* [#22311](https://github.com/cosmos/cosmos-sdk/pull/22311) Fix add feePayer as signer.
 
 ## [v0.13.5](https://github.com/cosmos/cosmos-sdk/releases/tag/x/tx/v0.13.5) - 2024-09-18