[Task]: Test failure in OpenAPI-tools after new changes to Balletina.toml diagnostics

[ShammiL]

Description:

testEmptyOpenApiContractForBalProject test in OpenAPI-tools is failing after a change done to Ballerina.toml diagnostics.

Current test implementation only checks for a single diagnostic,
WARNING [main.bal:(16:1,24:2)] given OpenAPI contract file path is an empty string. but after the new changes there's a new diagnostic added.

WARNING [Ballerina.toml:(1:1,29:1)] missing table '[package]' in 'Ballerina.toml'. Defaulting to:
[package]
org = "shammi"
name = "sample_tool_runner"
version = "0.1.0"

This is ignored during the test assertions.

There are two ways to fix this:

1. Include the package table in the sample(sample 8) Ballerina project used for the test so the new warning diagnostic will not be reported.
2. Change the test to correctly assert both diagnostics.

Steps to reproduce:

Use the timestamp version containing the new changes and run bal build for sample 8.

Affected Versions:

OS, DB, other environment details and versions:

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