fix(CI): missing go.sum entry for module providing package golang.org/x/net/proxy (imported by github.com/gorilla/websocket) on aggregator build (yetanotherco#1784)

Author: JuArce

docker/aggregator.Dockerfile

@@ -10,6 +10,7 @@ COPY metrics      ./metrics
 COPY contracts/bindings/ ./contracts/bindings
 
 RUN go get github.com/ethereum/go-ethereum@latest
+RUN go get github.com/gorilla/websocket@v1.5.1
 RUN go build -o ./aligned-layer-aggregator aggregator/cmd/main.go
 
 FROM debian:bookworm-slim