Use official SHA-256 as checksum for cacerts instead of MD5

What does this MR do?

Uses the official SHA-256 as checksum for cacerts software instead of MD5.

MD5 checksum has been used since its inception in 2014: 957bc89c.

Resources

• https://curl.se/docs/caextract.html
• https://github.com/chef/omnibus-software/pull/804 started using SHA-256 and https://github.com/chef/omnibus-software/pull/910 removed using MD5.

Related issues

n/a

Checklist

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Required

• Merge Request Title, and Description are up to date, accurate, and descriptive
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Expected (please provide an explanation if not completing)

• [n/a] Test plan indicating conditions for success has been posted and passes
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