[AWS][EC2] Enable TSDB by default

[constanca-m]

What does this PR do?

Enables TSDB by default for EC2 metrics data stream.

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.
• I have verified that Kibana version constraints are current according to guidelines.

Related issues

Relates to #6293.

[elasticmachine]

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• Start Time: 2023-08-29T09:06:39.291+0000

• Duration: 53 min 46 sec

Test stats 🧪

Test	Results
Failed	0
Passed	208
Skipped	4
Total	212

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (17/17)	💚
Files	94.444% (17/18)	👎 -5.556
Classes	94.444% (17/18)	👎 -5.556
Methods	85.953% (257/299)	👎 -14.047
Lines	86.024% (7509/8729)	👎 -7.834
Conditionals	100.0% (0/0)	💚

[elasticmachine]

Package aws - 2.1.0 containing this change is available at https://epr.elastic.co/search?package=aws