Added test cicd job

docker/Dockerfile.builder

@@ -1,6 +1,6 @@
 # vim: filetype=dockerfile
 # Our entire toolchain runs in alpine
-FROM alpine:latest AS builder
+FROM alpine:3.13.5 AS builder
 
 ENV PATH "$PATH:/app/.cargo/bin"
 # Needed for proper compiling of openssl-dev
@@ -29,8 +29,3 @@ WORKDIR /app
 RUN { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly; } && \
     rustup target add x86_64-unknown-linux-musl --toolchain nightly && \
     mkdir -p .cargo/registry target
-
-# Copy source code over to builder
-COPY --chown=builder:builder Cargo.toml Cargo.lock ./
-COPY --chown=builder:builder src/ ./src/
-COPY --chown=builder:builder migrations/ ./migrations/