Add swift-tools-support-core to SwiftWasm branch schemes

Author: MaxDesiatov

utils/update_checkout/update-checkout-config.json

@@ -66,6 +66,7 @@
                 "swift": "swiftwasm",
                 "cmark": "master",
                 "llbuild": "master",
+                "swift-tools-support-core": "master",
                 "swiftpm": "swiftwasm",
                 "swift-argument-parser": "0.0.6",
                 "swift-driver": "master",
@@ -92,6 +93,7 @@
                 "swift": "swiftwasm-release/5.3",
                 "cmark": "release/5.3",
                 "llbuild": "release/5.3",
+                "swift-tools-support-core": "release/5.3",
                 "swiftpm": "swiftwasm-release/5.3",
                 "swift-syntax": "release/5.3",
                 "swift-stress-tester": "release/5.3",