feat(nrdot-mssql): Added the automation cli for mssql otel

[RamanaReddy8801]

Jira Ticket: https://new-relic.atlassian.net/browse/NR-595317
Description: Implementation of the New Relic CLI installer for MSSQL OpenTelemetry (OTel) monitoring.

I’ve attached the test [documentation] covering several key integration scenarios for your review.

CI test coverage (Windows)

Added test/definitions/nrdot/mssql-otel/mssql-windows2019.json to test
nrdot-collector-mssql on Windows (SQL-auth mode) — this is the first
NRDOT recipe with Windows CI coverage in the repo.

Two supporting changes were needed to make this possible:

• New role test/deploy/windows/nrdot-mssql/install/roles/configure:
  the only SQL Server AMI available in CI ships with sa disabled and
  Windows-Auth-only mode. This role switches SQL Server to Mixed Mode,
  restarts it, then enables and sets a known sa password so the
  recipe's SQL-auth path (NR_CLI_MSSQL_AUTH_MODE=1) can be tested.
• Modified test/deploy/windows/newrelic-cli/install-recipe/roles/onafterstart/tasks/main.yml:
  added a generic env_var passthrough (PowerShell $env: assignments),
  matching the mechanism the Linux test runner already has. Without it,
  there was no way to inject the recipe's NR_CLI_MSSQL_* inputVars into
  a Windows test at all. This is additive (when: env_var is defined) and
  doesn't affect any existing Windows test definition.