chore: renovate bot setting to pin actions to a full length commit SHA

[naveensrinivasan]

• https://docs.renovatebot.com/modules/manager/github-actions/#additional-information

• Pinned actions by SHA https://github.com/ossf/scorecard/blob/main/docs/checks.md#pinned-dependencies

Pin actions to a full length commit SHA

Pinning an action to a full length commit SHA is currently the only way to use an action as an immutable release.
Pinning to a particular SHA helps mitigate the risk of a bad actor adding a backdoor to the action's repository,
as they would need to generate a SHA-1 collision for a valid Git object payload.

• https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions
• https://github.com/renovatebot/.github/blob/b0c3aa85ef2bb242580f20b02b380ca532b4ce17/default.json#L13

Summary

Test plan

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coveralls]

Pull Request Test Coverage Report for Build 2485421816

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 94.004%

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Totals
Change from base Build 2480589202:	0.0%
Covered Lines:	1117
Relevant Lines:	1154

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💛 - Coveralls

[ahnpnl]

Thanks!