fix(ci): remove unsupported cooldown config from github-actions, update PR template

[vbudhram]

Because

• Looks like that option is not support for github-actions

This pull request

• Keeps for npm but removes for github-actions

Issue that this pull request solves

Closes: (issue number)

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[Copilot]

Pull request overview

This PR updates the repository’s Dependabot configuration by removing the cooldown setting from the github-actions update entry in .github/dependabot.yml.

Changes:

• Remove the cooldown configuration block from the package-ecosystem: github-actions Dependabot updates section.

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[Copilot]

Removing cooldown from only the github-actions update block changes update behavior (e.g., major version bumps can now be proposed daily) and may not actually resolve a config-validation issue if the intent is to remove an “unsupported” option—cooldown is still configured for the npm entry above. If this change is driven by a platform limitation (e.g., GHES version), consider either keeping cooldown here (it’s supported per current GitHub Dependabot docs) or removing/adjusting cooldown consistently across all update entries so the fix is complete.

Suggested change

	interval: daily
	interval: daily
	cooldown:
	semver-major-days: 30
	semver-minor-days: 14
	semver-patch-days: 7

[vbudhram]

Missed this but this is duplicate of line above.