fix: golangci-lint issues

[utsabc]

Description

This PR handles the lint issues introduced here

Notion Ticket

< Replace with Notion Link >

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Base: 43.87% // Head: 43.87% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (eba5922) compared to base (cb230b0).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2641   +/-   ##
=======================================
  Coverage   43.87%   43.87%           
=======================================
  Files         187      187           
  Lines       40024    40038   +14     
=======================================
+ Hits        17560    17568    +8     
- Misses      21368    21370    +2     
- Partials     1096     1100    +4     

Impacted Files	Coverage Δ
router/router.go	74.20% <0.00%> (-0.62%)	⬇️
router/transformer/transformer.go	66.66% <ø> (ø)
config/backend-config/namespace_config.go	70.83% <0.00%> (-3.13%)	⬇️
services/rsources/handler.go	69.72% <0.00%> (-1.39%)	⬇️
processor/processor.go	72.18% <0.00%> (+0.82%)	⬆️

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