[AWS] [EMR] Add metrics dashboard

[gpop63]

What does this PR do?

Adds metrics dashboard for EMR 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.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes [AWS] [EMR Metrics] Dashboard #6438

Screenshots

[stratoula]

@gpop63 have you checked how it looks on dark mode? I am mostly concerned about the metrics.

[gpop63]

This is how it looks in dark mode:

[gpop63]

I used the default color for metric charts and now it adjusts itself! Thanks @stratoula

Black:

White:

[stratoula]

Much better now I think. We will work on this and then the transparent will be pure whit but until then this approach is better! LGTM

[elasticmachine]

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Build stats

• Start Time: 2023-06-19T14:34:56.119+0000

• Duration: 53 min 59 sec

Test stats 🧪

Test	Results
Failed	0
Passed	194
Skipped	4
Total	198

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (15/15)	💚
Files	93.75% (15/16)	👎 -3.36
Classes	93.75% (15/16)	👎 -3.36
Methods	85.714% (240/280)	👎 -6.5
Lines	85.925% (7387/8597)	👎 -6.335
Conditionals	100.0% (0/0)	💚

[zmoog]

The values are a little weird, but I know you partially used fake data.

LGTM, but we should add an item in the BETA to GA issue.

[elasticmachine]

Package aws - 1.45.2 containing this change is available at https://epr.elastic.co/search?package=aws