Upgrading node version to node_20.x

[rithikanarayan]

What does this PR do?

Upgrades node version from node_18.x to node_20.x in CI.

Motivation

Integration tests were failing on PRs due to incompatible node version during serverless framework installation.

Testing Guidelines

Additional Notes

Types of Changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog
• This PR passes the integration tests (ask a Datadog member to run the tests)

[rithikanarayan]

/merge

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2025-10-22 17:05:51 UTC ⚠️ MergeQueue: This merge request was unqueued

rithika.narayan@datadoghq.com unqueued this merge request

[rithikanarayan]

/remove

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2025-10-22 17:05:49 UTC ℹ️ Devflow: /remove