MDEV-30831 fixing, aws_key_management can compile with new aws sdk on UBUNTU 22.04, 24.04

[csenki]

• *The Jira issue number for this PR is: MDEV-30831

Description

MDEV-30831 fixing, aws_key_management plugin can compile with new aws sdk on UBUNTU 24.04 and 22.04
Its fix working with mariadb-10.11.

Release Notes

Little changes, only change 2 CMakeLists.txt and some include added to aws_key_management_plugin.cc

How can this PR be tested?

I tested build process.
cmake ../mariadb-serever -DPLUGIN_AWS_KEY_MANAGEMENT=DYNAMIC -DAWS_SDK_EXTERNAL_PROJECT=1 -DNOT_FOR_DISTRIBUTION=1
cd plugin/aws_key_management
make
I tested the plugin:
Install plugin
alter table .... ENGINE=INNODB encrypted=yes;
alter table .... ENGINE=INNODB encrypted=no;
I tested mariadb start and stop.

Basing the PR against the correct MariaDB version

• This is a new feature or a refactoring, and the PR is based against the main branch.
• This is a bug fix, and the PR is based against the earliest maintained branch in which the bug can be reproduced.

PR quality check

• I checked the CODING_STANDARDS.md file and my PR conforms to this where appropriate.
• For any trivial modifications to the PR, I am ok with the reviewer making the changes themselves.

[ottok]

Thanks for updating the submission based on feedback!

As your new commit 0d6beef modifies your own previous commit, it might be better to just amend the first commit instead of adding a new one. The end result of this PR should most likely be just one commit that fixes the build issue.