Set version to 0.9.11.

[fredrikekre]

No description provided.

[codecov-commenter]

Codecov Report

Merging #729 (18431aa) into master (2049674) will decrease coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #729      +/-   ##
==========================================
- Coverage   76.88%   76.71%   -0.17%     
==========================================
  Files          37       37              
  Lines        2444     2444              
==========================================
- Hits         1879     1875       -4     
- Misses        565      569       +4     

Impacted Files	Coverage Δ
src/access_log.jl	89.83% <0.00%> (-3.39%)	⬇️
src/Servers.jl	85.09% <0.00%> (-1.25%)	⬇️

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