Ajeita um bug de NA quando o autor da emenda é um deputado

[jairNeto]

Conserta a issue #.

Mudanças propostas nesse PR:
Quando o autor da emenda é um deputado, o estado dele estava aparecendo NA nas medidas provisórias

[codecov]

Codecov Report

Merging #117 into master will increase coverage by 12.15%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           master     #117       +/-   ##
===========================================
+ Coverage   75.61%   87.77%   +12.15%     
===========================================
  Files          15       14        -1     
  Lines        1136      924      -212     
===========================================
- Hits          859      811       -48     
+ Misses        277      113      -164

Impacted Files	Coverage Δ
R/emendas.R	94.23% <100%> (+5.89%)	⬆️
R/senadores.R
R/agenda.R	98.59% <0%> (+0.68%)	⬆️
R/utils.R	82.32% <0%> (+8.13%)	⬆️
R/proposicoes.R	100% <0%> (+18.5%)	⬆️
R/requerimentos.R	44.89% <0%> (+22.67%)	⬆️

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