CIAC-12622 - implement OAuth2

[lironcohen272]

Related Issues

fixes: https://jira-dc.paloaltonetworks.com/browse/CIAC-12622

Description

The current BMC Helix ITSM integration in XSOAR does not support OAuth authentication, which is now a requirement for the customer's environment.

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Coverage Report

File	Stmts	Miss	Cover	Missing
Packs/BmcITSM/Integrations/BmcITSM
BmcITSM.py	1105	205	81%	395–397, 410–413, 415–416, 423, 428–431, 476–478, 498–500, 514–516, 527–529, 531, 539, 615–619, 1800, 1937–1939, 2073–2074, 2076–2078, 2084, 2324, 2478, 3417, 3432, 3448, 3472–3479, 3482, 3531, 3600–3601, 3837–3839, 3849, 3851–3852, 3857, 4005, 4021–4023, 4027, 4104, 4118–4128, 4139, 4153–4155, 4157–4158, 4160–4162, 4170–4171, 4173–4175, 4177, 4192–4194, 4196–4197, 4200, 4202–4203, 4205–4206, 4208–4210, 4212–4213, 4215–4217, 4220, 4233, 4245, 4257–4260, 4271–4276, 4278, 4280, 4293, 4302, 4372–4374, 4376–4377, 4388–4391, 4398–4402, 4405–4410, 4413–4415, 4417–4426, 4428–4433, 4435–4436, 4440–4441, 4444, 4456, 4458, 4465, 4496–4499, 4512–4523, 4525, 4527–4532, 4534
TOTAL	1105	205	81%

Tests	Skipped	Failures	Errors	Time
67	0 💤	3 ❌	0 🔥	3.702s ⏱️

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⚠️ The PR is missing the ready-for-pipeline-running label. Please add the label when the PR is ready in order to proceed.

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Validate summary
The following errors were thrown as a part of this pr: IN152, RM110, IN145, RN106, PA114.
The following errors can be ignored: RM110, IN145.
The following errors cannot be ignored: IN152, RN106, PA114.
If the AG100 validation in the pre-commit GitHub Action fails, the pull request cannot be force-merged.
The following errors don't run as part of the nightly flow and therefore can be force merged: RN106, PA114.

Verdict: PR can be force merged from validate perspective? ❌