Use stable reference for getEntityActions action

[ntsekouras]

What?

Small follow up of: #62052 (comment)

Fixes the "The 'useSelect' hook returns different values when called with the same state and parameters. This can lead to unnecessary rerenders. " warning.

Testing instructions

Everything should work as before regarding the post actions

[github-actions]

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[github-actions]

Flaky tests detected in 703e59a.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/9497775915
📝 Reported issues:

• [Flaky Test] Redirection after template creation #60678 in /test/e2e/specs/site-editor/site-editor-url-navigation.spec.js

[ellatrix]

Does this need backporting?

[ntsekouras]

Does this need backporting?

@ellatrix no, it doesn't.