Update swift-format.yml

Bump swift-format to 5.7.2

Author: compnerd

.github/workflows/swift-format.yml

@@ -10,14 +10,14 @@ jobs:
     strategy:
       matrix:
         include:
-          - tag: 5.6-RELEASE
-            branch: swift-5.6-release
+          - tag: 5.7.2-RELEASE
+            branch: swift-5.7.2-release
 
     steps:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 1
-          ref: refs/tags/0.50600.1
+          ref: refs/tags/swift-5.7.2-RELEASE
           repository: apple/swift-format
 
       - uses: compnerd/gha-setup-swift@main