enhancement: Add CEL math extension

[oguzhand95]

Adds math.greatest and math.least macros introduced in cel-go@v0.13.0.

#1561

[codecov]

Codecov Report

Merging #1569 (2350574) into main (d0b3f79) will increase coverage by 0.21%.
The diff coverage is 100.00%.

❗ Current head 2350574 differs from pull request most recent head 9351410. Consider uploading reports for the commit 9351410 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1569      +/-   ##
==========================================
+ Coverage   53.32%   53.53%   +0.21%     
==========================================
  Files         130      128       -2     
  Lines       14605    14454     -151     
==========================================
- Hits         7788     7738      -50     
+ Misses       6132     6041      -91     
+ Partials      685      675      -10     

Impacted Files	Coverage Δ
internal/conditions/cel.go	79.51% <100.00%> (+0.50%)	⬆️

... and 8 files with indirect coverage changes