Point Issue Reporting to xctest-dynamic-overlay repo (#95)

Swift Package Manager honors redirects, but it appears to associate the
path suffix with the package name, and this conflicts with package
resolution in certain (but not all) cases.

I think we have no choice but to roll back everything to point to the
original xctest-dynamic-overlay URL and extract Issue Reporting to a
dedicated repo.

Author: stephencelis

Example/Example.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -15,16 +15,16 @@ let package = Package(
     .library(name: "Perception", targets: ["Perception"])
   ],
   dependencies: [
-    .package(url: "https://github.com/pointfreeco/swift-issue-reporting", from: "1.2.0"),
     .package(url: "https://github.com/pointfreeco/swift-macro-testing", from: "0.1.0"),
     .package(url: "https://github.com/swiftlang/swift-syntax", "509.0.0"..<"601.0.0-prerelease"),
+    .package(url: "https://github.com/pointfreeco/xctest-dynamic-overlay", from: "1.2.2"),
   ],
   targets: [
     .target(
       name: "Perception",
       dependencies: [
         "PerceptionMacros",
-        .product(name: "IssueReporting", package: "swift-issue-reporting"),
+        .product(name: "IssueReporting", package: "xctest-dynamic-overlay"),
       ]
     ),
     .testTarget(