Fix amqp091->amqp10 shovel with complex headers (backport #13798) #13801
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application properties. Before this change, trying to shovel
dead-lettered messages from an AMQP 0.9.1 source to AMQP 1.0 destination
would fail with:
```
reason: {badarg,
[{unicode,characters_to_binary,
[[{table,
[{<<"count">>,long,1},
{<<"reason">>,longstr,<<"maxlen">>},
{<<"queue">>,longstr,<<"tmp">>},
{<<"time">>,timestamp,1745575728},
{<<"exchange">>,longstr,<<>>},
{<<"routing-keys">>,array,
[{longstr,<<"tmp">>}]}]}]],
[{file,"unicode.erl"},
{line,1219},
{error_info,#{module => erl_stdlib_errors}}]},
{amqp10_client_types,utf8,1,
[{file,"amqp10_client_types.erl"},{line,99}]},
{amqp10_msg,'-set_application_properties/2-fun-0-',3,
[{file,"amqp10_msg.erl"},{line,385}]},
{maps,fold_1,4,[{file,"maps.erl"},{line,860}]},
{amqp10_msg,set_application_properties,2,
[{file,"amqp10_msg.erl"},{line,384}]},
{maps,fold_1,4,[{file,"maps.erl"},{line,860}]},
{rabbit_amqp10_shovel,forward,4,
[{file,"rabbit_amqp10_shovel.erl"},{line,337}]},
{rabbit_shovel_worker,handle_info,2,
[{file,"rabbit_shovel_worker.erl"},{line,104}]}]}
```
(cherry picked from commit c5271ea)
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Some AMQP 0.9.1 headers, in particular x-death headers, cannot be set as application properties. Before this change, trying to shovel dead-lettered messages from an AMQP 0.9.1 source to AMQP 1.0 destination would fail with:
Fixes #13797
This is an automatic backport of pull request #13798 done by Mergify.