[CAE-342] Initial sentinel issues fix

[htemelski]

Description

Fixed a couple of issues with the sentinel implementation

1. Indefinite reconnects without taking into consideration maxCommandRediscovers
2. Client losing it's watch status if there are multiple topology changes during a transaction
3. Fixed sentinel client .withTypeMapping() method

Fixed an issue with the testing setup itself, using the new docker image and setting the requirepass and masterauth configuration settings in a persistent way.

Enabled the majority of sentinel tests, added new test for fix 1.
Still skipping some tests that are flaky and prone to failing

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Checklist

• Does npm test pass with this change (including linting)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?