GOCBC-1582: Don't pass math.MaxUint32 to fmt.Errorf

Motivation
==========
Passing MaxUint32 as an int value to Errorf results in a compilation error in 32-bit systems

Change
======
Don't print math.MaxUint32 in search.convertUint64ToUnit32

Change-Id: Ib103b8975401f3c33db51a8421075bc61edaaf4e
Reviewed-on: https://review.couchbase.org/c/gocb/+/206658
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: Charles Dixon <chvckd@gmail.com>

search/internal.go

@@ -28,7 +28,7 @@ func (i Internal) MapFacetsToPs(facets map[string]Facet) (map[string]*search_v1.
 // value won't be truncated by uint32.
 func convertUint64ToUnit32(in uint64) (uint32, error) {
 	if in > uint64(math.MaxUint32) {
-		return 0, fmt.Errorf("value: %d overflows uint32: %d", in, math.MaxUint32)
+		return 0, fmt.Errorf("value: %d overflows uint32", in)
 	}
 
 	return uint32(in), nil