[Redis Enterprise]Add dimension fields to node datastream for TSDB su…

[ritalwar]

Proposed commit message

• This PR adds dimensions for node datastream of Redis Enterprise to support TSDB enablement.

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 [Redis Enterprise] TSDB Enablement #6268

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• Start Time: 2023-11-16T06:58:36.401+0000

• Duration: 15 min 53 sec

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Test	Results
Failed	0
Passed	5
Skipped	0
Total	5

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Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚
Classes	100.0% (0/0)	💚
Methods	50.0% (4/8)	👎 -47.531
Lines	100.0% (0/0)	💚 17.607
Conditionals	100.0% (0/0)	💚

[agithomas]

LGTM!

[ritalwar]

/test

[harnish-crest-data]

LGTM!

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Package redisenterprise - 0.8.0 containing this change is available at https://epr.elastic.co/search?package=redisenterprise