Change execution_date_time to varchar(100)

[anthonysena]

Aims to address #407 by updating the results data model

[codecov]

Codecov Report

Merging #408 (0b39cfe) into develop (23a8d3c) will decrease coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 0b39cfe differs from pull request most recent head c7c838e. Consider uploading reports for the commit c7c838e to get more accurate results

@@             Coverage Diff             @@
##           develop     #408      +/-   ##
===========================================
- Coverage    89.42%   89.40%   -0.03%     
===========================================
  Files           49       49              
  Lines         9808     9808              
===========================================
- Hits          8771     8769       -2     
- Misses        1037     1039       +2     

see 1 file with indirect coverage changes