Fix parsing error for mixing inline tables with strings in the same array in pyproject.toml

[TALLEC-Scott]

Hello,

scip‑python fails to parse pyproject.toml files that use PEP 735 dependency groups with the {include‑group = "..."} syntax, resulting in a TOML parsing error followed by a crash.

const TOML = require('@iarna/toml');
const content = \`
  [dependency-groups]
  dev = [
    {include-group = \"test\"},
    \"ml_stack_document_extraction\",
  ]
  \`;


  try {
    const result = TOML.parse(content);
    console.log('SUCCESS:', JSON.stringify(result, null, 2));
  } catch (e) {
    console.log('ERROR:', JSON.stringify(e));
  }

Output:

ERROR: {"name":"TomlError","fromTOML":true,"wrapped":null,"line":4,"col":34,"pos":94}

this lib does not support valid TOML 1.0 syntax

This means I can't use gitlab's code intelligence on uv project using scip-python which the gitlab component uses.

[linear]

OSS-24204