Prefer https over http when available

[jdufresne]

No description provided.

[codecov]

Codecov Report

Merging #925 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #925   +/-   ##
=======================================
  Coverage   77.11%   77.11%           
=======================================
  Files          30       30           
  Lines        1643     1643           
  Branches      245      245           
=======================================
  Hits         1267     1267           
  Misses        303      303           
  Partials       73       73

Impacted Files	Coverage Δ
debug_toolbar/panels/sql/views.py	13.79% <ø> (ø)	⬆️
debug_toolbar/panels/templates/panel.py	85.96% <ø> (ø)	⬆️
debug_toolbar/utils.py	83.13% <ø> (ø)	⬆️

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