Add SetupAndValidateUpgradeCluster, UpgradeNeeded for snow

[jiayiwang7]

Issue #, if available:

#1106

Description of changes:

Add set defaults and validation step for snow. Compare snow eks-a and bundle resources to see if provider upgrade is needed.

Testing (if applicable):

unit tests

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[codecov]

Codecov Report

Merging #2006 (67aeca3) into main (7ec067a) will increase coverage by 0.00%.
The diff coverage is 86.36%.

@@           Coverage Diff           @@
##             main    #2006   +/-   ##
=======================================
  Coverage   49.76%   49.77%           
=======================================
  Files         298      298           
  Lines       25406    25443   +37     
=======================================
+ Hits        12644    12664   +20     
- Misses      11444    11460   +16     
- Partials     1318     1319    +1     

Impacted Files	Coverage Δ
pkg/providers/snow/snow.go	57.44% <86.36%> (+7.44%)	⬆️
internal/pkg/api/flux.go	0.00% <0.00%> (ø)

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