Request to Parameterize the client_max_body_size Directive in the Nginx Configuration for the Web Pod

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Please confirm the following

• I agree to follow this project's code of conduct.
• I have checked the current issues for duplicates.
• I understand that AWX Operator is open source software provided for free and that I might not receive a timely response.

Feature Summary

Currently, the client_max_body_size directive in the Nginx configuration, defined within the ConfigMap mounted in the web pod at /etc/nginx/nginx.conf, is hardcoded to 5M. This limitation can cause issues when uploading files larger than this size through the web server.

I propose making this directive configurable so that its value can be adjusted via a key in the AWX CR.

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#1287

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#1286

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Merged against devel branch