[Security Rules] Update security rules package to v8.8.7

[terrancedejesus]

What does this PR do?

Update the Security Rules package to version 8.8.7.
Autogenerated from commit https://github.com/elastic/detection-rules/tree/5e7ae6254ff0cd0d196f7d2e21ef171322ff5b81

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• If I'm introducing a new feature, I have modified the Kibana version constraint in my package's manifest.yml file to point to the latest Elastic stack release (e.g. ^7.13.0).

Author's Checklist

• Install the most recently release security rules in the Detection Engine
• Install the package
• Confirm the update is available in Kibana. Click "Update X rules" or "Install X rules"
• Look at the changes made after the install and confirm they are consistent

How to test this PR locally

• Perform the above checklist, and use package-storage to build EPR from source

Related issues

• https://github.com/elastic/ia-trade-team/issues/136

Screenshots

None

[elasticmachine]

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• Start Time: 2023-07-13T18:15:21.879+0000

• Duration: 15 min 40 sec

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[elasticmachine]

Package security_detection_engine - 8.8.7 containing this change is available at https://epr.elastic.co/search?package=security_detection_engine