try to fix carthage

Author: 3a4oT

Diff for: Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.2
+// swift-tools-version:5.3
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Diff for: build.sh

@@ -261,7 +261,19 @@ cocoapods-lint-other-subspecs)
 
 carthage|all)
     echo "Verifying carthage works."
+    ## carthage workaround to slip spm based project
+    spm_example_project="examples/ASIGListKitSPM/Sample.xcodeproj"
+    carthge_example_project_workaround="examples/ASIGListKitSPM/Sample.carthageSkip"
+
+    # apply workaround
+    mv $spm_example_project $carthge_example_project_workaround
+
+    # carthage job
     set -o pipefail && carthage update && carthage build --no-skip-current
+
+    #revert back workaround
+    mv $carthge_example_project_workaround $spm_example_project
+
     success="1"
     ;;