[ link bitrot ] prove6 (#4606)

https://raku.land/cpan:LEONT/App::Prove6
=>
https://raku.land/zef:leont/App::Prove6

Author: habere-et-dispertire

doc/Language/testing.rakudoc

@@ -73,7 +73,7 @@ command line:
 $ raku t/test-filename.rakutest
 
 To run all tests in the directory recursively,
-L<prove6|https://raku.land/cpan:LEONT/App::Prove6> application can
+L<prove6|https://raku.land/zef:leont/App::Prove6> application can
 be used.
 
 You have to install it before using with zef:
@@ -92,7 +92,7 @@ distribution path, it is an equivalent of C<-Ilib> argument of
 C<raku> command.
 
 For more documentation regarding C<prove6> usage refer to
-L<its page|https://raku.land/cpan:LEONT/App::Prove6>.
+L<its page|https://raku.land/zef:leont/App::Prove6>.
 
 To abort the test suite upon first failure, set the
 C<RAKU_TEST_DIE_ON_FAIL> environment variable: