Add MSSP functionality to Hosts and User Management samples, fix CSPM policies sample

[jshcodes]

Sample updates

This pull request updates several samples to provide MSSP functionality and implements a bug fix for the CSPM policies sample causing the example to drop a few of the results.

• Enhancement
• Bug fixes
• Code sample

Bandit analysis

Please note: Due to a false positive newly introduced in bandit version 1.7.3, we have pinned bandit to version 1.7.2 temporarily.

bandit -r samples

[main]	INFO	running on Python 3.9.9
Run started:2022-03-03 01:40:18.145639

Test results:
	No issues identified.

Code scanned:
	Total lines of code: 4585
	Total lines skipped (#nosec): 1

Run metrics:
	Total issues (by severity):
		Undefined: 0.0
		Low: 0.0
		Medium: 0.0
		High: 0.0
	Total issues (by confidence):
		Undefined: 0.0
		Low: 0.0
		Medium: 0.0
		High: 0.0
Files skipped (0):

Added features and functionality

• Added: MSSP functionality to multiple samples for Hosts and User Management service collections.
  • samples/hosts/sensor_versions_by_hostname.py
  • samples/hosts/stale_sensors.py
  • samples/user_management/bulk_user.py

Issues resolved

• Bug fix: JSON parsing issue resulting in dropped policies from overall resultset.
  • samples/cspm_registration/get_cspm_policies.py