chore: Bump traefik v3.6.15 #3658

Job	Run time
unit-tests	2m 10s
multiplatform-image-build (ubuntu-24.04-arm)	3m 0s
source-code-validation	57s
multiplatform-image-build (ubuntu-24.04)	3m 46s
dependencies-validation	6m 15s
dependencies-validation	2m 6s
multiplatform-image-build (ubuntu-24.04)	3m 46s
multiplatform-image-build (ubuntu-24.04-arm)	3m 0s
unit-tests	2m 10s
source-code-validation	57s
	28m 7s

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