feat: update CI configuration and Dockerfiles for improved build efficiency

Enhanced the CI workflow by adding support for docker-bake.hcl to streamline the building and pushing of Go images. Updated Go version to 1.24 and introduced caching for Go module dependencies. Refactored Dockerfiles for evobgp-agent, evobgp-web, and gobinary to utilize build stages more effectively, improving caching and build performance. Adjusted installation commands and entry points for better clarity and maintainability.

deploy/docker/evobgp-agent/Dockerfile

@@ -1,19 +1,10 @@
-# evobgp-agent + bird2 из репозитория Ubuntu Noble (тот же стек, что evobgp-bird2).
-# См. gobinary/Dockerfile — ECR Public вместо прямого pull с Docker Hub.
-# Порядок слоёв как в gobinary: кэш модулей отдельно от исходников (CI/CD BuildKit).
-FROM public.ecr.aws/docker/library/golang:1.24-bookworm AS deps
-WORKDIR /src
-COPY go.mod go.sum ./
-RUN go mod download
-
-FROM deps AS build
-COPY . .
-RUN go build -trimpath -ldflags="-s -w" -o /out/evobgp-agent ./cmd/evobgp-agent
-
+# syntax=docker/dockerfile:1.7
+# Агент: бинарь из общего build-all (docker-bake.hcl → contexts.build-all), bird2 из apt.
 FROM public.ecr.aws/docker/library/ubuntu:noble
 RUN apt-get update \
-	&& apt-get install -y --no-install-recommends bird2 ca-certificates \
-	&& rm -rf /var/lib/apt/lists/*
-COPY --from=build /out/evobgp-agent /usr/local/bin/evobgp-agent
+    && apt-get install -y --no-install-recommends bird2 ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+ARG BIN=evobgp-agent
+COPY --from=build-all /out/${BIN} /usr/local/bin/evobgp-agent
 WORKDIR /etc/bird
 ENTRYPOINT ["/usr/local/bin/evobgp-agent"]