fix(QTDI-2912): fix Possible ClassCastException in SchemaConverter

[undx]

https://qlik-dev.atlassian.net/browse/QTDI-2912

Requirements

• Any code change adding any logic MUST be tested through a unit test executed with the default build
• Any API addition MUST be done with a documentation update if relevant

Why this PR is needed?

What does this PR adds (design/code thoughts)?

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[Copilot]

Pull request overview

Fixes a numeric-conversion bug in SchemaConverter that could throw a ClassCastException when converting Float default values to JSON, and adds unit tests to prevent regressions in numeric handling.

Changes:

• Reworked SchemaConverter#toValue numeric handling to avoid casting Float to Double and added a Number fallback.
• Added SchemaConverterTest regression tests for Float/Double and other numeric types, including BigDecimal/BigInteger precision checks.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
component-runtime-manager/src/main/java/org/talend/sdk/component/runtime/manager/xbean/converter/SchemaConverter.java	Adjusts numeric branches in toValue() to prevent Float casting failures and adds a Number fallback.
component-runtime-manager/src/test/java/org/talend/sdk/component/runtime/manager/xbean/converter/SchemaConverterTest.java	Adds regression/unit tests covering numeric conversion behavior for toValue().

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Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

[sonar-rnd]

Quality Gate failed

• 0.00% Coverage on New Code (is less than 80.00%)

Project ID: org.talend.sdk.component:component-runtime

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