chore: fix stale PR closing workflow

[erikayasuda]

We have a GHA workflow to auto-close stale PRs, but it seems to not have been closing any.

Adding the missing config variable to let stale PRs (30 days old) get auto-closed after 1 day of no activity.

Successful run here.
Example PR with bot comment and close here

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

.github/workflows/stale.yml                                             @DataDog/python-guild @DataDog/apm-core-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 231 ± 4 ms.

The average import time from base is: 238 ± 7 ms.

The import time difference between this PR and base is: -7.1 ± 0.2 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 2.447 ms (1.06%)

ddtrace.bootstrap.sitecustomize 1.659 ms (0.72%)

ddtrace.bootstrap.preload 1.659 ms (0.72%)

ddtrace.internal.products 1.659 ms (0.72%)

ddtrace.internal.remoteconfig.client 0.759 ms (0.33%)

ddtrace 0.788 ms (0.34%)

ddtrace._logger 0.111 ms (0.05%)

logging 0.096 ms (0.04%)

traceback 0.096 ms (0.04%)

contextlib 0.096 ms (0.04%)

ddtrace.internal.telemetry 0.015 ms (0.01%)

ddtrace.internal.telemetry.writer 0.015 ms (0.01%)

ddtrace.internal.telemetry.data 0.015 ms (0.01%)

ddtrace.internal.hostname 0.015 ms (0.01%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-04-14 20:57:55

Comparing candidate commit 23fa7d0 in PR branch erikayasuda/fix-stale-close with baseline commit 7367467 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 400 metrics, 2 unstable metrics.