[confighttp] Remove pointer in CookiesConfig field (#13116) #30785

Job	Run time
govulncheck	34s
setup-environment	19s
checks	2m 40s
lint	5m 9s
test-coverage	8m 29s
unittest-matrix (ubuntu-latest, ~1.24)	2m 37s
unittest-matrix (ubuntu-latest, ~1.23)	2m 27s
cross-build-collector (darwin, amd64)	46s
cross-build-collector (aix, ppc64)	47s
cross-build-collector (linux, arm64)	1m 2s
cross-build-collector (linux, 386)	52s
cross-build-collector (darwin, arm64)	57s
cross-build-collector (linux, arm, 7)	51s
cross-build-collector (linux, amd64)	53s
cross-build-collector (linux, ppc64le)	54s
cross-build-collector (windows, 386)	51s
cross-build-collector (linux, s390x)	59s
cross-build-collector (windows, amd64)	48s
unittest	2s
	31m 57s

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