fix: update retry logic for cancelled file uploads

- Changed shouldRetry behavior to retry uploads when CancellationException occurs instead of failing
- Updated logic in both UploadFileFromContentUriWorker and UploadFileFromFileSystemWorker
- This ensures upload tasks can recover from temporary cancellations rather than failing permanently

Author: zerox80

opencloudApp/src/main/java/eu/opencloud/android/workers/UploadFileFromContentUriWorker.kt

@@ -382,7 +382,7 @@ class UploadFileFromContentUriWorker(
     private fun shouldRetry(throwable: Throwable?): Boolean {
         if (throwable == null) return false
         if (throwable is UnauthorizedException || throwable is LocalFileNotFoundException) return false
-        if (throwable is CancellationException) return false
+        if (throwable is CancellationException) return true
         if (throwable is IOException) return true
         return shouldRetry(throwable.cause)
     }

opencloudApp/src/main/java/eu/opencloud/android/workers/UploadFileFromFileSystemWorker.kt

@@ -359,7 +359,7 @@ class UploadFileFromFileSystemWorker(
     private fun shouldRetry(throwable: Throwable?): Boolean {
         if (throwable == null) return false
         if (throwable is LocalFileNotFoundException) return false
-        if (throwable is CancellationException) return false
+        if (throwable is CancellationException) return true
         if (throwable is IOException) return true
         return shouldRetry(throwable.cause)
     }