Fix typo

Author: wei18

Package.swift

@@ -350,7 +350,7 @@ let package = Package(
             path: "Sources/dependabot"
         ),
         .testTarget(
-            name: "UserTests",
+            name: "UsersTests",
             dependencies: [
                 .product(name: "OpenAPIRuntime", package: "swift-openapi-runtime"),
                 .product(name: "OpenAPIURLSession", package: "swift-openapi-urlsession"),

Scripts/PackageBuilder.swift

@@ -100,7 +100,7 @@ struct PackageBuilder {
             targets: [
         \#(targetsString)
                 .testTarget(
-                    name: "UserTests",
+                    name: "UsersTests",
                     dependencies: [
                         .product(name: "OpenAPIRuntime", package: "swift-openapi-runtime"),
                         .product(name: "OpenAPIURLSession", package: "swift-openapi-urlsession"),