fix(llmobs): fix document typing

[Yun-Kim]

Resolves #9600.

This PR addresses the incorrect typing hint in the ddtrace.llmobs.utils.py Documents constructor. The documents constructor currently accepts integer/float values for the document score field, but the typing specifies only string field values. The typing fix resolves this inconsistency.

Checklist

• [x] Change(s) are motivated and described in the PR description
• [x] Testing strategy is described if automated tests are not included in the PR
• [x] Risks are described (performance impact, potential for breakage, maintainability)
• [x] Change is maintainable (easy to change, telemetry, documentation)
• [x] Library release note guidelines are followed or label changelog/no-changelog is set
• [x] Documentation is included (in-code, generated user docs, public corp docs)
• [x] Backport labels are set (if applicable)
• [x] If this PR changes the public interface, I've notified @DataDog/apm-tees.

Reviewer Checklist

• [x] Title is accurate
• [x] All changes are related to the pull request's stated goal
• [x] Description motivates each change
• [x] Avoids breaking API changes
• [x] Testing strategy adequately addresses listed risks
• [x] Change is maintainable (easy to change, telemetry, documentation)
• [x] Release note makes sense to a user of the library
• [x] Author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• [x] Backport labels are set in a manner that is consistent with the release branch maintenance policy

[datadog-dd-trace-py-rkomorn[bot]]

Datadog Report

Branch report: yunkim/llmobs-fix-typing-documents Commit report: cf1d582 Test service: dd-trace-py

:white_check_mark: 0 Failed, 764 Passed, 39629 Skipped, 35m 59.3s Total duration (59m 48.69s time saved)

[pr-commenter[bot]]

Benchmarks

Benchmark execution time: 2024-06-20 21:32:35

Comparing candidate commit 3567c335565341b9eb3757dbe9e6ec586d789ae0 in PR branch yunkim/llmobs-fix-typing-documents with baseline commit 099aa7647058c1b9e3c4dd68ab7733e12e721bd3 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 205 metrics, 9 unstable metrics.