[V2] Increase Agent logfile size

[michalpristas]

What does this PR do?

This PR increases logfile size limit from 10MB to 20MB

Why is it important?

As log files of processes are removed and events are persisted in agent log file we need to increase agent logfile size to keep capacity of the logs.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Fixes: #1992

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• Start Time: 2022-12-23T09:34:17.133+0000

• Duration: 16 min 49 sec

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Test	Results
Failed	0
Passed	4749
Skipped	13
Total	4762

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	98.305% (58/59)	👍
Files	69.268% (142/205)	👍
Classes	69.231% (270/390)	👍
Methods	54.128% (826/1526)	👍
Lines	39.224% (8963/22851)	👎 -0.044
Conditionals	100.0% (0/0)	💚