Bump SwiftArgumentParser checkout to 1.0.3.

(cherry picked from commit 182e194)

Author: abertelrud

utils/update_checkout/update-checkout-config.json

@@ -91,7 +91,7 @@
                 "llbuild": "main",
                 "swift-tools-support-core": "main",
                 "swiftpm": "main",
-                "swift-argument-parser": "1.0.1",
+                "swift-argument-parser": "1.0.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",
                 "swift-crypto": "1.1.5",
@@ -132,7 +132,7 @@
                 "llbuild": "main",
                 "swift-tools-support-core": "main",
                 "swiftpm": "main",
-                "swift-argument-parser": "1.0.1",
+                "swift-argument-parser": "1.0.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",
                 "swift-crypto": "1.1.5",
@@ -165,7 +165,7 @@
                 "llbuild": "release/5.6",
                 "swift-tools-support-core": "release/5.6",
                 "swiftpm": "release/5.6",
-                "swift-argument-parser": "1.0.1",
+                "swift-argument-parser": "1.0.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",
                 "swift-crypto": "1.1.5",
@@ -282,7 +282,7 @@
                 "llbuild": "main",
                 "swift-tools-support-core": "main",
                 "swiftpm": "main",
-                "swift-argument-parser": "1.0.1",
+                "swift-argument-parser": "1.0.3",
                 "swift-atomics": "1.0.2",
                 "swift-collections": "1.0.1",                
                 "swift-crypto": "1.1.5",