Dockerfiles: consolidate RUN commands (#140)

Author: mmorel-35

test/e2e/docker/Dockerfile.consumer

@@ -1,7 +1,8 @@
 FROM ubuntu:22.04
-RUN apt-get update && apt install -y build-essential clang git wget
-RUN wget -O /usr/local/bin/bazel https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64
-RUN chmod +x /usr/local/bin/bazel
+RUN apt-get update \
+    && apt install -y build-essential clang git wget \
+    && wget -O /usr/local/bin/bazel https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64 \
+    && chmod +x /usr/local/bin/bazel
 COPY . /tmp
 WORKDIR /tmp
 RUN bazel build //test/e2e:e2e_consumer

test/e2e/docker/Dockerfile.provider

@@ -1,7 +1,8 @@
 FROM ubuntu:22.04
-RUN apt-get update && apt install -y build-essential clang git wget
-RUN wget -O /usr/local/bin/bazel https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64
-RUN chmod +x /usr/local/bin/bazel
+RUN apt-get update \
+    && apt install -y build-essential clang git wget \
+    && wget -O /usr/local/bin/bazel https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64 \
+    && chmod +x /usr/local/bin/bazel
 COPY . /tmp
 WORKDIR /tmp
 RUN bazel build //test/e2e:e2e_provider