Increase the request_timeout from default

[rooftopcellist]

• As AWX gets overloaded with jobs, the response time of HTTP requests to the api/v2/jobs endpoint
• The result is that AnsibleJob objects launcht he job, then keep checking for the status of the job that was launch. The GET request times out, and it launches a new job, which complicates the problem further.
• This behavior is seen when createing 100+ AnsibleJob objects at once
• We should keep this HTTP request_timeout abnormally high until the resource operator grows a better way to handle this (smart checks for timeout errors, etc.)

[rooftopcellist]

@dsavineau That is a good idea. I just added the ability to configure request_timeout on the job and workflow CR's. I also added a better description for what Job TTL is while there.

I bumped the minimum version of awx.awx collection to 22.7.0, which is the version that option was introduced in.