Close #6446: Add sphinx.ext.durations to inspect durations of build

[tk0miya]

Feature or Bugfix

• Feature

Purpose

• refs: Add an option to know which files slow down the build #6446

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (2.0@0f79bcc). Click here to learn what that means.
The diff coverage is 91.52%.

@@          Coverage Diff           @@
##             2.0    #6922   +/-   ##
======================================
  Coverage       ?   83.93%           
======================================
  Files          ?      273           
  Lines          ?    42002           
  Branches       ?     6042           
======================================
  Hits           ?    35256           
  Misses         ?     5404           
  Partials       ?     1342

Impacted Files	Coverage Δ
tests/test_ext_duration.py	100% <100%> (ø)
sphinx/ext/duration.py	90.38% <90.38%> (ø)

---

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 0f79bcc...29687a2. Read the comment docs.