Allow using ProfilingPanel as non last panel

[noamkush]

The profiling panel profiles process_request so that's always the root function, but if it's not the last panel, it might have callers. As a result, the panel won't work unless it's last. Since we know what's the root we can use that instead of searching for it.

Fixes #1208

[auvipy]

shouldn't we update the tests or verify the changes with proper test cases?

[noamkush]

Well, this panel is already covered by tests and I'm not sure there's anything new to test for.

[codecov]

Codecov Report

Merging #1299 (1187365) into main (7b9a488) will increase coverage by 0.19%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1299      +/-   ##
==========================================
+ Coverage   87.78%   87.97%   +0.19%     
==========================================
  Files          29       35       +6     
  Lines        1555     2328     +773     
  Branches      218      414     +196     
==========================================
+ Hits         1365     2048     +683     
- Misses        140      201      +61     
- Partials       50       79      +29     

Impacted Files	Coverage Δ
debug_toolbar/panels/profiling.py	88.54% <100.00%> (-2.53%)	⬇️
debug_toolbar/panels/history/panel.py	89.70% <0.00%> (-5.65%)	⬇️
debug_toolbar/panels/history/views.py	95.34% <0.00%> (-4.66%)	⬇️
debug_toolbar/panels/cache.py	80.80% <0.00%> (-2.78%)	⬇️
debug_toolbar/apps.py	90.66% <0.00%> (-0.45%)	⬇️
debug_toolbar/decorators.py	100.00% <0.00%> (ø)
debug_toolbar/panels/request.py	100.00% <0.00%> (ø)
debug_toolbar/panels/sql/__init__.py	100.00% <0.00%> (ø)
debug_toolbar/panels/history/__init__.py	100.00% <0.00%> (ø)
... and 18 more

---

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 7b9a488...1187365. Read the comment docs.

[auvipy]

lets see what the new CI tell