build: Adopt go.work and remove submodule replace statements #13353

Job	Run time
Get files changed and conditionally skip CI	26s
get-go-version / Determine Go toolchain version	5s
get-envoy-versions / Determine supported Envoy versions	6s
Setup	6s
integration-test-with-deployer	3m 7s
Generate Envoy Job Matrices	8s
dev-build / build	1m 14s
envoy-integration-test (server, case-expose-checks\|case-ingress-gateway-peering-failover\|case-ing...	2m 21s
envoy-integration-test (server, case-basic\|case-badauthz\|case-centralconf\|case-consul-exec\|case-c...	2m 25s
nomad-integration-test (v1.8.3)	44s
envoy-integration-test (server, case-multidc-rsa-ca\|case-statsd-udp\|case-api-gateway-tcp-tls-over...	2m 2s
vault-integration-test (1.17.5)	2m 30s
nomad-integration-test (v1.7.7)	2m 3s
compatibility-integration-test	3m 19s
envoy-integration-test (server, case-ingress-gateway-multiple-services\|case-gateway-without-servi...	2m 8s
vault-integration-test (1.16.3)	2m 19s
nomad-integration-test (v1.6.10)	1m 59s
envoy-integration-test (client, case-expose-checks\|case-ingress-gateway-peering-failover\|case-ing...	2m 55s
vault-integration-test (1.15.6)	2m 22s
envoy-integration-test (client, case-basic\|case-badauthz\|case-centralconf\|case-consul-exec\|case-c...	2m 57s
envoy-integration-test (client, case-multidc-rsa-ca\|case-statsd-udp\|case-api-gateway-tcp-tls-over...	2m 25s
envoy-integration-test (client, case-ingress-gateway-multiple-services\|case-gateway-without-servi...	2m 56s
test-integrations-success	1s
	40m 38s

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