NET-6390 Initialize MeshGateway proto #8047

Job	Run time
Get files changed and conditionally skip CI	25s
Setup	7s
Generate Envoy Job Matrices	7s
integration-test-with-deployer	3m 21s
dev-build / build	1m 15s
nomad-integration-test (v1.6.2)	2m 27s
nomad-integration-test (v1.5.9)	2m 23s
nomad-integration-test (v1.4.13)	2m 19s
vault-integration-test (1.15.0)	2m 29s
vault-integration-test (1.14.4)	2m 41s
vault-integration-test (1.13.8)	2m 28s
vault-integration-test (1.12.11)	2m 37s
envoy-integration-test (1.27.2, server, case-ingress-gateway-sds\|case-grpc\|case-cfg-resolver-feat...	6m 42s
envoy-integration-test (1.27.2, server, case-terminating-gateway-subsets\|case-cfg-resolver-subset...	6m 44s
compatibility-integration-test	13m 15s
envoy-integration-test (1.27.2, server, docs\|case-api-gateway-http-tls-overlapping-hosts\|case-htt...	5m 7s
envoy-integration-test (1.27.2, server, case-gateway-without-services\|case-consul-exec)	1m 38s
envoy-integration-test (1.27.2, client, case-ingress-gateway-sds\|case-grpc\|case-cfg-resolver-feat...	7m 38s
envoy-integration-test (1.27.2, client, case-terminating-gateway-subsets\|case-cfg-resolver-subset...	6m 17s
envoy-integration-test (1.27.2, client, docs\|case-api-gateway-http-tls-overlapping-hosts\|case-htt...	5m 33s
envoy-integration-test (1.27.2, client, case-gateway-without-services\|case-consul-exec)	1m 39s
test-integrations-success	1s
	1h 17m 13s

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