Update test expectations after switch to SoftFloat library in the extractor

[jketema]

Description

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• Have all the relevant rule package description files been checked in?
• Have you verified that the metadata properties of each new query is set appropriately?
• Do all the unit tests contain both "COMPLIANT" and "NON_COMPLIANT" cases?
• Are the alert messages properly formatted and consistent with the style guide?
• Have you run the queries on OpenPilot and verified that the performance and results are acceptable?
  As a rule of thumb, predicates specific to the query should take no more than 1 minute, and for simple queries be under 10 seconds. If this is not the case, this should be highlighted and agreed in the code review process.
• Does the query have an appropriate level of in-query comments/documentation?
• Have you considered/identified possible edge cases?
• Does the query not reinvent features in the standard library?
• Can the query be simplified further (not golfed!)

[Copilot]

Pull request overview

Updates C++ AUTOSAR rule unit test expected outputs to align with the extractor’s new SoftFloat-based floating-point formatting, preventing test failures due to numeric rendering differences.

Changes:

• Adjust floating-point literal renderings in .expected files (e.g., normalized scientific notation / exponent casing).
• Update expected-result row numbering where output ordering/formatting shifted.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
cpp/autosar/test/rules/M5-0-6/ImplicitConstConversionToSmallerUnderlyingType.expected	Updates expected float conversion output formatting for SoftFloat extractor output.
cpp/autosar/test/rules/M2-13-4/LiteralSuffixNotUpperCase.expected	Updates expected floating-point literal value formatting for suffix diagnostics.
cpp/autosar/test/rules/A13-6-1/UseCorrectIntervalForDigitSequencesSeparators.expected	Updates expected floating-point digit-separator diagnostics value formatting to match SoftFloat output.

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