GHRepository#getIssues() takes 30s

[Alathreon]

Describe the bug
A clear and concise description of what the bug is.
I am using the method GHRepository#getIssues() to get all issues for auto complete purpose in a discord bot, but the problem is that there are more than 1000 issues and fetching them all takes 28s...
It could be partially patched by allowing the client to set a page size to large numbers, so it doesn't need to do a HTTP call 44 times.

To Reproduce
Steps to reproduce the behavior:

• Have a repository with 1000+ issues
• Call getIssues() with no filter

Expected behavior
A clear and concise description of what you expected to happen.
It should take much less time.

Desktop (please complete the following information):

• Version 1.329
• Tested in many Windows/Linux distributions

Additional context
Add any other context about the problem here.

[bitwiseman]

Use queryIssues() instead.
This method should be deprecated for all the limitations you've mentioned.