[sophos] update title and description

[leehinman]

What does this PR do?

updates description & version for sophos integration.

Related issues

• Relates Update title and description based on guidelines for Elastic Agent based Security integrations #1900

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[elasticmachine]

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• Start Time: 2021-10-19T18:57:19.866+0000

• Duration: 27 min 28 sec

• Commit: 7d1ccc7

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Test	Results
Failed	0
Passed	13
Skipped	0
Total	13

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