Fix long validator name for polygonzkevmtestnet

[tkporter]

Description

• polygonzkevmtestnet's validator name was too long because of the controller-revision-hash label, see StatefulSet with long name can not create pods kubernetes/kubernetes#64023
• Seeks to preserve the -validator suffix in the name, but truncates the earlier bit - in practice this results in validator pods like polygonzkevmtestnet-validator-hyperlane-ag-validator-0. This felt like the most backward compatible change -- of course we could consider trying to get a name like polygonzkevmtestnet-hyperlane-agent-validator-0 but this would break backward compatibility more dramatically because we'd need to change all the other validator pods. Imo we should just really avoid long chain names or consider a more breaking change to our infra

Drive-by changes

n/a

Related issues

n/a

Backward compatibility

Mostly

Testing

Deployed

[codecov]

Codecov Report

Merging #2832 (1cebd20) into v3 (6769f55) will decrease coverage by 0.10%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##               v3    #2832      +/-   ##
==========================================
- Coverage   61.86%   61.76%   -0.10%     
==========================================
  Files         100      100              
  Lines        1007     1007              
  Branches      104      104              
==========================================
- Hits          623      622       -1     
  Misses        347      347              
- Partials       37       38       +1     

Components	Coverage Δ
core	50.00% <ø> (ø)
hooks	67.93% <ø> (ø)
isms	67.91% <ø> (-0.75%)	⬇️
token	55.44% <ø> (ø)
middlewares	73.17% <ø> (ø)