[FEATURE] Default plugins.calcite.fallback.allowed to false

[penghuo]

Is your feature request related to a problem?

• [FEATURE][Calcite Engine] Support access to nested fields after command FIELDS #3459
• [BUG] PPL throws a CalciteUnsupportedException when the query includes both multi_match and json_extract #3771

What solution would you like?

1. Change default value of plugins.calcite.fallback.allowed to false. Query either execute in calcite engine (v3) or v2 engine, controled by plugins.calcite.enabled. If user use Unsupported Functionalities in Calcite Engine when calcite.enable=true, throw exception.
2. All IT should passed with plugins.calcite.fallback.allowed=false, except Unsupported Functionalities in Calcite Engine
3. Mark plugins.calcite.fallback.allowed as deprecated.

What alternatives have you considered?
Deprecated plugins.calcite.fallback.allowed setting.

Do you have any additional context?
n/a