[Fix] stale only-labels

[franchuterivera]

Only labels was misunderstood on my part:

# Only issues or pull requests with all of these labels are check if stale. Defaults to `[]` (disabled)

All the labels have to be present. There is support to except labels here.

This works as showed here:

• Unlabeled: Bug Buggy BUG 3 franchuterivera/auto-sklearn#9 (comment)
• Labeled (ignored as it has bug): bug 1 franchuterivera/auto-sklearn#11

[codecov]

Codecov Report

Merging #1134 (d50ed09) into development (0982410) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #1134      +/-   ##
===============================================
- Coverage        85.83%   85.77%   -0.06%     
===============================================
  Files              137      137              
  Lines            10625    10625              
===============================================
- Hits              9120     9114       -6     
- Misses            1505     1511       +6     

Impacted Files	Coverage Δ
...ine/components/feature_preprocessing/kernel_pca.py	94.73% <0.00%> (-1.76%)	⬇️
autosklearn/util/backend.py	75.08% <0.00%> (-1.43%)	⬇️
autosklearn/ensemble_builder.py	76.65% <0.00%> (-0.41%)	⬇️
...ine/components/classification/gradient_boosting.py	92.17% <0.00%> (+0.86%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0982410...d50ed09. Read the comment docs.

[mfeurer]

What would happen if an issue is labeled bug and Feedback-Required?

[franchuterivera]

Bug takes priority, for example, if one looks into R-studio issues, in particular, 5621 one can see that it has been idle since 2019 but it has the label documentation so it will not be closed.