Added support to fetch assets in Tenable io

[merit-maita]

Contributing to Cortex XSOAR Content

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Status

• In Progress
• Ready
• In Hold - (Reason for hold)

Related Issues

fixes: https://jira-dc.paloaltonetworks.com/browse/CIAC-6944, https://jira-dc.paloaltonetworks.com/browse/CIAC-9180

Description

A few sentences describing the overall goals of the pull request's commits.
clean version of this pr: #27754

Must have

• Tests
• Documentation

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
Packs/Tenable_io/Integrations/Tenable_io
Tenable_io.py	734	168	77%	156–159, 226, 228, 230, 336, 352, 360, 366–369, 395, 442–443, 448–461, 474–480, 482–486, 494, 504–510, 512–514, 526, 529, 552–553, 571–572, 636, 687, 710, 724, 734, 749–755, 759–763, 765–767, 770–773, 775–776, 778, 785, 793, 804–805, 807, 826, 836, 847–848, 867, 871, 882, 921, 952, 969–973, 986–990, 1004–1008, 1112–1113, 1115, 1118, 1204–1205, 1207, 1210, 1252–1253, 1264, 1346, 1374, 1376–1377, 1387, 1609, 1615, 1681, 1712, 1714, 1716–1720, 1722–1723, 1725–1730, 1732–1733, 1738, 1740–1741, 1743, 1762, 1769–1770, 1772, 1788–1794, 1796
TOTAL	734	168	77%

Tests	Skipped	Failures	Errors	Time
51	0 💤	0 ❌	0 🔥	3.101s ⏱️

[ShirleyDenkberg]

@thefrieddan1 Doc review completed.