Fix EOF issue when building on drone in windows. (#778)

* When running drone exec through windows the EOF markers must be getting mixed up line endings. Changing them to normal RUN fixes the problem and allows you to build on windows that passes to a linux container.

* Use singular line instead of separate run statements.

Dockerfile

@@ -39,11 +39,10 @@ ARG USERNAME="alloy"
 LABEL org.opencontainers.image.source="https://github.com/grafana/alloy"
 
 # Install dependencies needed at runtime.
-RUN <<EOF
-  apt-get update
-  apt-get install -qy libsystemd-dev tzdata ca-certificates
-  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-EOF
+RUN  apt-get update \
+ &&  apt-get install -qy libsystemd-dev tzdata ca-certificates \
+ &&  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
 
 COPY --from=build /src/alloy/build/alloy /bin/alloy
 COPY example-config.alloy /etc/alloy/config.alloy

tools/build-image/Dockerfile

@@ -65,14 +65,12 @@ FROM rfratto/viceroy:v0.4.0
 # will fail on installing NodeJS for all platforms instead of just our host
 # platform.
 # Source: https://github.com/nodesource/distributions#installation-instructions
-RUN <<EOF
-  apt-get update && apt-get install -qy ca-certificates curl gnupg && mkdir -p /etc/apt/keyrings
-  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
-  echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
-
-  apt-get update && apt-get install -qy nodejs
-  rm -rf /var/lib/apt/lists/*
-EOF
+
+RUN  apt-get update && apt-get install -qy ca-certificates curl gnupg && mkdir -p /etc/apt/keyrings  \
+ &&  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+ &&  echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_16.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list \
+ &&  apt-get update && apt-get install -qy nodejs \
+ &&  rm -rf /var/lib/apt/lists/*
 
 # Install Yarn.
 #