fix: add " to the new update_interval_* options of the autoscaler

[kayman-mk]

Description

The new options update_interval and update_interval_when_expecting are strings and need a " around the value. Otherwise the configuration file has the wrong format and the Agent might not work as expected.

Closes #1176

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🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.51s
✅ REPOSITORY	checkov	yes		no	15.06s
✅ REPOSITORY	dustilock	yes		no	0.33s
✅ REPOSITORY	gitleaks	yes		no	1.32s
✅ REPOSITORY	git_diff	yes		no	0.06s
✅ REPOSITORY	grype	yes		no	12.89s
✅ REPOSITORY	secretlint	yes		no	1.04s
✅ REPOSITORY	syft	yes		no	0.44s
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