[aws] Enable request tracer

[bhapas]

What does this PR do?

This PR enables request tracer on all OBS cloud monitoring Integrations with httpjson input.

Sets the minimum Kibana version to 8.7.1

Enables the request tracer in system tests.

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

• Add request tracer toggle for httpjson input type #5641

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Build stats

• Start Time: 2023-05-15T10:00:13.025+0000

• Duration: 48 min 12 sec

Test stats 🧪

Test	Results
Failed	0
Passed	188
Skipped	4
Total	192

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (15/15)	💚
Files	93.75% (15/16)	👎 -3.292
Classes	93.75% (15/16)	👎 -3.292
Methods	86.131% (236/274)	👎 -5.67
Lines	85.925% (7387/8597)	👎 -6.112
Conditionals	100.0% (0/0)	💚

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[elasticmachine]

Package aws - 1.35.0 containing this change is available at https://epr.elastic.co/search?package=aws