chore: fix releasy test tracking branch from main to master (#1460)

As it can be seen from FuelLabs/fuels-rs#1174
releasy only worked for self commits so far. This is because we were tracking
the wrong branch from this repo. This PR fixes the tracking branch for this repo, from
`main` to `master`.

Author: kuroki-yosuke

.github/workflows/releasy-dependency-commits.yml

@@ -3,7 +3,7 @@ name: Notify downstream repos
 on:
   push:
     branches:
-    - main 
+    - master
 
 jobs:
 

CHANGELOG.md

@@ -41,6 +41,7 @@ Description of the upcoming release here.
 
 ### Changed
 
+- [#1460](https://github.com/FuelLabs/fuel-core/pull/1460): Change tracking branch from main to master for releasy tests.
 - [#1440](https://github.com/FuelLabs/fuel-core/pull/1440): Don't report reserved nodes that send invalid transactions.
 - [#1439](https://github.com/FuelLabs/fuel-core/pull/1439): Reduced memory BMT consumption during creation of the header.
 - [#1434](https://github.com/FuelLabs/fuel-core/pull/1434): Continue gossiping transactions to reserved peers regardless of gossiping reputation score.