Align numerical type priority order on the search side.

[fmassot]

#1978 partially fixes #1956: we should infer number in the following order i64, u64, f64. But when building a query, we call convert_to_fast_value_and_get_term to infer the type and this function has the following u64, i64, f64.

This PR fixes the ordering and starts with i64.

TODO:

• fix test
• add a test to check the consistency between ordering at indexing and search.

[codecov-commenter]

Codecov Report

Merging #2088 (0cb5320) into main (7220df8) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main    #2088      +/-   ##
==========================================
- Coverage   94.38%   94.38%   -0.01%     
==========================================
  Files         321      321              
  Lines       60384    60389       +5     
==========================================
+ Hits        56996    57000       +4     
- Misses       3388     3389       +1     

Impacted Files	Coverage Δ
src/core/json_utils.rs	99.58% <100.00%> (ø)
src/query/query_parser/query_parser.rs	94.89% <100.00%> (+0.01%)	⬆️

... and 1 file with indirect coverage changes

[fulmicoton]

thanks! sorry for messing up