fix datasources not getting updated correctly

[kevmodrome]

Description

Fixes an issue where only the name would be saved and everything else would be thrown out when updating a datasource.

[codecov-commenter]

Codecov Report

Merging #2480 (ab77935) into develop (f0bebb0) will increase coverage by 0.01%.
The diff coverage is 50.00%.

@@             Coverage Diff             @@
##           develop    #2480      +/-   ##
===========================================
+ Coverage    74.79%   74.80%   +0.01%     
===========================================
  Files          111      111              
  Lines         3384     3386       +2     
  Branches       475      475              
===========================================
+ Hits          2531     2533       +2     
  Misses         556      556              
  Partials       297      297              

Impacted Files	Coverage Δ
packages/server/src/api/controllers/datasource.js	62.12% <0.00%> (ø)
packages/server/src/api/controllers/table/utils.js	81.55% <100.00%> (+0.36%)	⬆️

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