OZG-7324: Fix Licenses

.gitignore

Dockerfile

buf.gen.yaml

buf.yaml

cmd/antragsraum-proxy/main.go

config/config-local.yml

config/config.yml

internal/config/config.go

internal/config/config_test.go

internal/config/testdata/config-local.yml

internal/config/testdata/config.yml

internal/mock/globals.go

internal/mock/grpc_server.go

internal/mock/grpc_server_test.go

internal/mock/test_setup.go

internal/mock/testdata/config.yml

internal/server/globals.go

internal/server/grpc_router.go

internal/server/grpc_router_test.go

internal/server/handler.go