Fix for change in import() behaviour for Perl > 5.39.1

Move the `Exporter::Tiny` setup before loading anything else so that the
`import()` is visible. Use `require` for `Attean` so that
`Attean->import()` is not called.

Fixes <kasei#167>.

See also <Perl/perl5#21269>.

lib/Attean/RDF.pm

@@ -35,14 +35,14 @@ package Attean::RDF 0.033 {
 	use v5.14;
 	use warnings;
 
-	use Attean;
-	use List::MoreUtils qw(zip);
 	require Exporter::Tiny;
-	use namespace::clean;
-
 	our @ISA	= qw(Exporter::Tiny);
 	our @EXPORT	= qw(iri blank literal dtliteral langliteral variable triple quad triplepattern quadpattern bgp);
 
+	require Attean;
+	use List::MoreUtils qw(zip);
+	use namespace::clean;
+
 =item C<< variable( $value ) >>
 
 C<< Attean::Variable->new($value) >>