std.cache_hash: bump up the base64 digest len to avoid '=='
std.cache_hash: bump up the base64 digest len to avoid '=='

raulgrell/zig,zig-lang/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig