Reduce slice length to prevent timeout in test

This timeout is caused by fixing an issue that slices of testcases were
unintentionally being sorted.

If array is sorted, the complexities of bubble sort and insertion sort
are O(n), but in general they are O(n^2) and 500k is large enough to
cause timeout.

sorts/sorts_testcases.go

@@ -13,8 +13,8 @@ type sortTest struct {
 	name     string
 }
 
-var uarr []int = makeRandomUnsignedSlice(500_000)
-var arr []int = makeRandomSignedSlice(500_000)
+var uarr []int = makeRandomUnsignedSlice(5_000)
+var arr []int = makeRandomSignedSlice(5_000)
 
 var sortTests = []sortTest{
 	//Sorted slice
@@ -23,7 +23,7 @@ var sortTests = []sortTest{
 	//Reversed slice
 	{[]int{10, 9, 8, 7, 6, 5, 4, 3, 2, 1},
 		[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "Reversed Unsigned"},
-	//500k unsigned int values sort
+	//5k unsigned int values sort
 	{uarr, getSortedVersion(uarr), "Large Random Unsigned"},
 
 	//Sorted slice
@@ -42,7 +42,7 @@ var sortTests = []sortTest{
 	{[]int{-5, 7, 4, -2, 6, 5, 8, 3, 2, -7, -1, 0, -3, 9, -6, -4, 10, 9, 1, -8, -9, -10},
 		[]int{-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 10}, "Random order Signed"},
 
-	//500k int values sort
+	//5k int values sort
 	{arr, getSortedVersion(arr), "Large Random Signed"},
 
 	//Empty slice