Revive excludedPaths by stopping double resolution

This commit stops resolving a path to an absolute path in
Configuration.groupFiles. This will resolve the issue mentioned in
comments in #6795 that the "excluded" configuration in .swiftlint.yml
is ignored when file paths are passed as arguments.

Author: tomotakatakahashi

CHANGELOG.md

@@ -26,6 +26,10 @@
   [SimplyDanny](https://github.com/SimplyDanny)
   [#5740](https://github.com/realm/SwiftLint/issues/5740)
 
+* Fix `excluded` configuration being ignored when file paths are passed as arguments.  
+  [Tomotaka Takahashi](https://github.com/tomotakatakahashi)
+  [#6795](https://github.com/realm/SwiftLint/issues/6795)
+
 ## 0.65.1: Fresh Folded Fixtures
 
 ### Breaking

Source/SwiftLintFramework/Configuration+CommandLine.swift

@@ -118,11 +118,9 @@ extension Configuration {
 
         return files.parallelFilterGroup { file in
             let fileConfiguration = configuration(for: file)
-            let fileConfigurationRootPath = fileConfiguration.rootDirectory
 
             // Files whose configuration specifies they should be excluded will be skipped
-            let shouldSkip = fileConfiguration.excludedPaths.contains { excludedRelativePath in
-                let excludedPath = fileConfigurationRootPath.appending(path: excludedRelativePath.relativePath)
+            let shouldSkip = fileConfiguration.excludedPaths.contains { excludedPath in
                 let filePathComponents = file.path?.pathComponents ?? []
                 let excludedPathComponents = excludedPath.pathComponents
                 return filePathComponents.starts(with: excludedPathComponents)