Update handling of cache_control changed in nginx 1.23.0 (Fixes #96)

[hnakamur]

This pull request fixes Nginx 1.23.0 header changes · Issue #96 · openresty/srcache-nginx-module.
See nginx/nginx@3aef1d6 for changes in nginx.

[zhuizhuhaomeng]

@hnakamur you can add v1.23.0 to .travis.yml.

[hnakamur]

Add patch for nginx 1.23.0 by hnakamur · Pull Request #24 · openresty/no-pool-nginx is needed to be merged for travis nginx 1.23.0 to be successful.

[zhuizhuhaomeng]

@hnakamur no-pool-nginx.patch has been merged.

[zhuizhuhaomeng]

@hnakamur would you please retrigger the travis?

[hnakamur]

@zhuizhuhaomeng I tried to retrigger the travis, but the "Trigger build" menu in "More options" dropdown at https://app.travis-ci.com/github/openresty/srcache-nginx-module/jobs/574418725 is disabled.
Would you regtrigger the travis instead?

[zhuizhuhaomeng]

I can not retrigger the travis also. I think you need to add a new commit , eg: add one space in the travis.yml.

[zhuizhuhaomeng]

@zhuizhuhaomeng I tried to retrigger the travis, but the "Trigger build" menu in "More options" dropdown at https://app.travis-ci.com/github/openresty/srcache-nginx-module/jobs/574418725 is disabled. Would you regtrigger the travis instead?

thanks god, I can retrigger the travis after I login travis-ci.com

[zhuizhuhaomeng]

Hi @hnakamur thanks your contribution. I have approved this PR.
Because the following three modules are still not compatible with nginx-1.23.0 and the ci can not work properly, So I will not merge the PR for now.

lua-nginx-module headers-more-nginx-module ngx_http_redis 

[hnakamur]

Thanks for reviewing and approving!

[zhuizhuhaomeng]

@hnakamur t/private.t run failed.
function ngx_http_srcache_process_multi_header_lines still think the r->headers_out.headers is an array.
would you please fix it.

[zhuizhuhaomeng]

@hnakamur thank you for your contribution.
I have merged the PR.
The ci still can not pass due to other issues. We need other PRs to fix the ci.