Update SymbolicWedderburn to v0.3

[blegat]

See kalmarek/SymbolicWedderburn.jl#48

Closes #244

[codecov]

Codecov Report

Merging #243 (601c096) into master (5747286) will increase coverage by 1.46%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master     #243      +/-   ##
==========================================
+ Coverage   76.84%   78.31%   +1.46%     
==========================================
  Files          36       36              
  Lines        1706     1697       -9     
==========================================
+ Hits         1311     1329      +18     
+ Misses        395      368      -27     

Impacted Files	Coverage Δ
src/Certificate/Symmetry/wedderburn.jl	0.00% <0.00%> (ø)
src/Certificate/Symmetry/utils.jl	64.28% <100.00%> (+64.28%)	⬆️

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