Fixes an exception in AMQP 0-9-1 exception (error) generator when input data includes non-ASCII characters (backport #12888)

[mergify]

Proposed Changes

rabbit_binary_generator:map_exception/3 will crash when there are unicode characters in the explanation field of Reason#amqp_error parameter. The explanation string (list) is assumed to be ascii, with each character/member in the range of a byte. Any unicode characters in the string will trigger badarg crash of list_to_binary/1 in rabbit_binary_generator:amqp_exception_explanation/2.

Amqp091 shovel crash due to this is reported, #12874
When a queue as shovel source/destination does not exist, and its name contains non-ascii characters, the explanation of amqp_error will be like no queue non_ascii_name_😍 in vhost /. It will subsequently crash and even affect management console.

To fix this, unicode:characters_to_binary/1 is used instead of list_to_binary/1, and unicode-safe truncation of long explanation with io_lib:format/3 chars_limit replaces direct bytes truncation.

Types of Changes

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• [x ] Bug fix (non-breaking change which fixes issue Channel exception generation fails for a queue that contains non-ASCII characters #12874)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause an observable behavior change in existing systems)
• Documentation improvements (corrections, new content, etc)
• Cosmetic change (whitespace, formatting, etc)
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This is an automatic backport of pull request #12888 done by [Mergify](https://mergify.com).

[michaelklishin]

#12890