Fix flakyness in SmallFileBackupIntegrationTest again

Since the chunk gets zipped, the random input data would sometimes differ in size if randomness wasn't truly random, so it could be compressed more.

storage/lib/src/test/java/org/calyxos/backup/storage/backup/SmallFileBackupIntegrationTest.kt

@@ -105,7 +105,9 @@ internal class SmallFileBackupIntegrationTest {
                 it.copy(lastSeen = cachedFile2.lastSeen) == cachedFile2
             })
         } just Runs
-        coEvery { observer.onFileBackedUp(file2, true, 0, 181, "S") } just Runs
+        coEvery {
+            observer.onFileBackedUp(file2, true, 0, match<Long> { it <= outputStream2.size() }, "S")
+        } just Runs
 
         val result = smallFileBackup.backupFiles(files, availableChunkIds, observer)
         assertEquals(setOf(chunkId.toHexString()), result.chunkIds)
@@ -114,7 +116,7 @@ internal class SmallFileBackupIntegrationTest {
         assertEquals(0, result.backupMediaFiles.size)
 
         coVerify {
-            observer.onFileBackedUp(file2, true, 0, 181, "S")
+            observer.onFileBackedUp(file2, true, 0, match<Long> { it <= outputStream2.size() }, "S")
         }
     }