IIS ignore older option

[muthu-mps]

• Enhancement

What does this PR do?

Adds support to ignore logs older than specified period. Details are in #3147

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.

How to test this PR locally

Install IIS integration
Check for new ignore_older option is available for logs datastream.
Verify the log collection by specifying the value to the ignore_older option.

• Closes [IIS Integration] Implement ignore_older for IIS integration Logs #3847

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• Start Time: 2022-09-19T11:57:38.518+0000

• Duration: 13 min 26 sec

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Passed	29
Skipped	0
Total	29

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Name	Metrics % (covered/total)	Diff
Packages	100.0% (2/2)	💚
Files	100.0% (2/2)	💚 2.679
Classes	100.0% (2/2)	💚 2.679
Methods	85.714% (30/35)	👎 -4.045
Lines	91.781% (268/292)	👍 0.34
Conditionals	100.0% (0/0)	💚

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[ishleenk17]

Looks good!