Update schedule.interval options in overview table

[hugovk]

Why:

There are now more options (thank you for these!):

https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference#interval

List them all in the overview table:

https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference#required-keys

Closes: #43558

What's being changed (if available, include any code snippets, screenshots, or gifs):

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require an SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing and the changes look good in the review environment.

[github-actions]

How to review these changes 👓

Thank you for your contribution. To review these changes, choose one of the following options:

• Spin up a codespace
• Set up a local development environment

A Hubber will need to deploy your changes internally to review.

Table of review links

Note: Please update the URL for your staging server or codespace.

The table shows the files in the content directory that were changed in this pull request. This helps you review your changes on a staging server. Changes to the data directory are not included in this table.

Source	Review	Production	What Changed
code-security/reference/supply-chain-security/dependabot-options-reference.md	fpt ghec ghes@ 3.20 3.19 3.18 3.17 3.16 3.15 3.14	fpt ghec ghes@ 3.20 3.19 3.18 3.17 3.16 3.15 3.14

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

🤖 This comment is automatically generated.

[Copilot]

Pull request overview

Updates the Dependabot options reference to reflect the expanded set of schedule.interval values by listing them in the “Required keys” overview table.

Changes:

• Expanded the schedule.interval supported values listed in the “Required keys” table to include quarterly, semiannually, yearly, and cron.

[Copilot]

This row now lists interval values (quarterly, semiannually, yearly) that aren’t supported on all versions this page builds for (the interval section later shows GHES supports only daily, weekly, monthly and optionally cron). Please make the supported-values list in this overview table version-conditional (using {% ifversion %} like other tables in this file), or keep the table description version-agnostic and point readers to the interval section for the full, version-specific list.

Suggested change

	| [`schedule.interval`](#schedule-) | Under each `package-ecosystem` entry | Define whether to look for version updates: `daily`, `weekly`, `monthly`, `quarterly`, `semiannually`, `yearly`, or `cron`. |
	| [`schedule.interval`](#schedule-) | Under each `package-ecosystem` entry | Define how often to look for version updates. For supported values and version-specific details, see the `interval` option in the `schedule` section. |

[hugovk]

@copilot suggest with ifversion

[kokomaungofficial-ai]

Hi