Update ECS version from 8.1.0 to 8.5.1

[muthu-mps]

• Enhancement

What does this PR do?

Updates the ECS version from 8.1.0 to 8.5.1

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have added an entry to my package's changelog.yml file.

How to test this PR locally

Verify the tests are getting executed and the ECS version changes reflects where-ever applicable.

• Closes Update ECS version 8.1.0 -> 8.5.1 #4789

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2023-01-18T11:43:19.843+0000

• Duration: 26 min 27 sec

Test stats 🧪

Test	Results
Failed	0
Passed	165
Skipped	0
Total	165

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (9/9)	💚
Files	100.0% (9/9)	💚 2.303
Classes	100.0% (9/9)	💚 2.303
Methods	95.868% (116/121)	👍 3.952
Lines	95.768% (1516/1583)	👍 2.835
Conditionals	100.0% (0/0)	💚

[ishleenk17]

Changes look fine!

[elasticmachine]

Package apache_spark - 0.4.0 containing this change is available at https://epr.elastic.co/search?package=apache_spark

[elasticmachine]

Package nagios_xi - 0.3.0 containing this change is available at https://epr.elastic.co/search?package=nagios_xi

[elasticmachine]

Package oracle_weblogic - 0.4.0 containing this change is available at https://epr.elastic.co/search?package=oracle_weblogic

[elasticmachine]

Package spring_boot - 0.7.0 containing this change is available at https://epr.elastic.co/search?package=spring_boot