Updated Pipelines and fixed new Hadolints

- Removed azure-pipelines
- Updated gh-actions to run `cargo test` per db feature
- Fail on warnings by adding `RUSTFLAGS` env
- Updated Dockerfile to fix some new hadolint warnings

docker/armv7/Dockerfile.alpine

@@ -54,8 +54,8 @@ RUN rustup target add armv7-unknown-linux-musleabihf
 # Builds your dependencies and removes the
 # dummy project, except the target folder
 # This folder contains the compiled dependencies
-RUN cargo build --features ${DB} --release --target=armv7-unknown-linux-musleabihf
-RUN find . -not -path "./target*" -delete
+RUN cargo build --features ${DB} --release --target=armv7-unknown-linux-musleabihf \
+    && find . -not -path "./target*" -delete
 
 # Copies the complete project
 # To avoid copying unneeded files, use .dockerignore
@@ -67,6 +67,7 @@ RUN touch src/main.rs
 # Builds again, this time it'll just be
 # your actual source files being built
 RUN cargo build --features ${DB} --release --target=armv7-unknown-linux-musleabihf
+# hadolint ignore=DL3059
 RUN musl-strip target/armv7-unknown-linux-musleabihf/release/vaultwarden
 
 ######################## RUNTIME IMAGE  ########################
@@ -79,17 +80,18 @@ ENV ROCKET_PORT=80
 ENV ROCKET_WORKERS=10
 ENV SSL_CERT_DIR=/etc/ssl/certs
 
+# hadolint ignore=DL3059
 RUN [ "cross-build-start" ]
 
-# Install needed libraries
-RUN apk add --no-cache \
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apk add --no-cache \
         openssl \
         curl \
         dumb-init \
         ca-certificates
 
-RUN mkdir /data
-
+# hadolint ignore=DL3059
 RUN [ "cross-build-end" ]
 
 VOLUME /data