Fix snsqs non-SNS SQS message headers

[andrewmy]

In snsqs usage scenario you still get non-SNS messages when you resend a message for retrying.

Additional unrelated fixes to make it right:

• Fixed functional test runner in CI to apply different PHP versions rather than the same one;
• Dropped PHP 7.3 and added 7.4 to the functional test matrix;
• Bumped dependencies to versions compatible with PHP 8.0;
• Bump react libs to fix wamp hanging on PHP 8.

[andrewmy]

@makasim could you please review this? Thanks!

[makasim]

The change looks good to, though tests fail. They have to be fixed before I can merge

[andrewmy]

@makasim looks like the PHP packages from Sury aren't there any more for EOL versions of Ubuntu and PHP, so could you please review and merge makasim/docker-nginx-php-fpm#4, then push the 7.4 image? 🙏

Then I can update this PR to use 7.4 in functional tests.

[makasim]

@makasim looks like the PHP packages from Sury aren't there any more for EOL versions of Ubuntu and PHP, so could you please review and merge makasim/docker-nginx-php-fpm#4, then push the 7.4 image? 🙏

sure

[makasim]

build&pushed https://hub.docker.com/layers/makasim/nginx-php-fpm/7.4-all-exts/images/sha256-a5a686df3bca13da7fb7123a87574eedd3eb3985c97410b75bf536f463acffc1?context=explore

[makasim]

@andrewmy great job, thank you!

[andrewmy]

@makasim thanks for the merge! 🎉 Could we have a release? :)

[makasim]

https://github.com/php-enqueue/snsqs/releases/tag/0.10.12