update_checkout: bump s-a-p to 1.2.3

In order to work with further improvements to static linking on Windows
to enable Swift in Swift and C++ Interop, we need to bump the s-a-p with
a fix for underlinking.

Author: compnerd

utils/update_checkout/update-checkout-config.json

@@ -100,7 +100,7 @@
                 "llbuild": "main",
                 "swift-tools-support-core": "main",
                 "swiftpm": "main",
-                "swift-argument-parser": "1.2.2",
+                "swift-argument-parser": "1.2.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",
                 "swift-crypto": "2.5.0",
@@ -144,7 +144,7 @@
                 "llbuild": "main",
                 "swift-tools-support-core": "main",
                 "swiftpm": "main",
-                "swift-argument-parser": "1.2.2",
+                "swift-argument-parser": "1.2.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",
                 "swift-crypto": "2.5.0",