cisco_ise: add support for filestream input

[efd6]

What does this PR do?

See title

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.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes [Cisco ISE] Add filestream input  #7388

Screenshots

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Build stats

• Start Time: 2023-08-15T23:48:57.221+0000

• Duration: 16 min 30 sec

Test stats 🧪

Test	Results
Failed	0
Passed	38
Skipped	0
Total	38

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (17/17)	💚
Classes	100.0% (17/17)	💚
Methods	100.0% (176/176)	💚 75.0
Lines	99.003% (4566/4612)	👎 -0.997
Conditionals	100.0% (0/0)	💚

[elasticmachine]

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

[bhapas]

LGTM

[elasticmachine]

Package cisco_ise - 1.12.0 containing this change is available at https://epr.elastic.co/search?package=cisco_ise