Update coverage.yml

Bump coverage builds to 5.9 release

Author: compnerd

.github/workflows/coverage.yml

@@ -24,8 +24,8 @@ jobs:
     strategy:
       matrix:
         include:
-          - branch: development
-            tag: DEVELOPMENT-SNAPSHOT-2022-07-20-a
+          - branch: swift-5.9-release
+            tag: 5.9-RELEASE
 
     steps:
     - uses: actions/checkout@v2