Bump blockbuster to 1.5.26 (#11804)

[Dreamsorcerer]

(cherry picked from commit bffff8c)

[codspeed-hq]

CodSpeed Performance Report

Merging #11806 will not alter performance

_{Comparing patchback/backports/3.13/bffff8cfd3e9f1d078a4781912fc863c4d230a69/pr-11804 (efb8da8) with 3.13 (ea6c065)}

Summary

✅ 59 untouched

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.26%. Comparing base (ea6c065) to head (efb8da8).
⚠️ Report is 45 commits behind head on 3.13.

Additional details and impacted files

@@            Coverage Diff             @@
##             3.13   #11806      +/-   ##
==========================================
+ Coverage   98.24%   98.26%   +0.02%     
==========================================
  Files         128      128              
  Lines       44058    44058              
  Branches     2393     2393              
==========================================
+ Hits        43285    43294       +9     
+ Misses        595      588       -7     
+ Partials      178      176       -2     

Flag	Coverage Δ
CI-GHA	98.15% <ø> (+0.01%)	⬆️
OS-Linux	97.90% <ø> (+0.01%)	⬆️
OS-Windows	95.62% <ø> (-0.01%)	⬇️
OS-macOS	97.14% <ø> (+0.17%)	⬆️
Py-3.10.11	96.67% <ø> (ø)
Py-3.10.19	97.18% <ø> (+<0.01%)	⬆️
Py-3.11.14	97.37% <ø> (-0.01%)	⬇️
Py-3.11.9	96.86% <ø> (+1.76%)	⬆️
Py-3.12.10	96.95% <ø> (+1.75%)	⬆️
Py-3.12.12	97.45% <ø> (+0.66%)	⬆️
Py-3.13.9	97.69% <ø> (+0.21%)	⬆️
Py-3.14.0	97.66% <ø> (+<0.01%)	⬆️
Py-3.14.1t	96.76% <ø> (?)
Py-3.9.13	96.57% <ø> (+1.76%)	⬆️
Py-3.9.25	97.07% <ø> (+0.13%)	⬆️
Py-pypy3.11.13-7.3.20	96.93% <ø> (?)
VM-macos	97.14% <ø> (+0.17%)	⬆️
VM-ubuntu	97.90% <ø> (+0.01%)	⬆️
VM-windows	95.62% <ø> (-0.01%)	⬇️

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