Update Swift version to 6.3 in workflow

Signed-off-by: Christopher Jr Riley <chrisjr@cjrriley.com>

Author: MasterJ93

.github/workflows/swift.yml

@@ -16,7 +16,7 @@ jobs:
 
     - uses: swift-actions/setup-swift@v2
       with:
-        swift-version: "6.1.0"
+        swift-version: "6.3"
     - name: Get swift version
       run: swift --version