[Cisco ASA] Loosen time parsing and add group and session type capture

[efd6]

What does this PR do?

This change reflects the changes to beats Cisco ASA module in elastic/beats#28325.

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

• Confirm this matches x-pack/filebeat/module/cisco: loosen time parsing and add group and session type capture beats#28325

How to test this PR locally

elastic-package test pipeline

Related issues

• Relates x-pack/filebeat/module/cisco: loosen time parsing and add group and session type capture beats#28325

Screenshots

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

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Build stats

• Start Time: 2021-10-11T11:53:14.506+0000

• Duration: 26 min 59 sec

• Commit: 63f2147

Test stats 🧪

Test	Results
Failed	0
Passed	26
Skipped	0
Total	26

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