Add upper bound for base64-bytestring, #5598
Add upper bound for base64-bytestring, #5598

michalkonecny/stackage,fpco/stackage,soenkehahn/stackage,massysett/stackage,clinty/stackage,Daniel-Diaz/stackage,mrkkrp/stackage,simonmichael/stackage,iand675/stackage,jonschoning/stackage