chore(deps): improve xmrig docker builds (#4273)

Description
Bump xmrig version installed, add curl for internal healthcheck for docker, env updates

How Has This Been Tested?
Build in quay for intel and arm
Tested on Mac Intel and Raspberry Pi

applications/launchpad/docker_rig/xmrig.Dockerfile

@@ -1,11 +1,16 @@
 # Source build
-FROM alpine:latest as builder
+
+ARG ALPINE_VERSION=3.16
+
+FROM alpine:$ALPINE_VERSION as builder
 
 # Declare to make available
+ARG ALPINE_VERSION
 ARG BUILDPLATFORM
 
 # https://github.com/xmrig/xmrig/releases
-ARG XMRIG_VERSION="v6.17.0"
+ARG XMRIG_VERSION="v6.18.0"
+ARG VERSION=1.0.1
 
 RUN apk add \
     git \
@@ -29,21 +34,32 @@ RUN cmake .. -DXMRIG_DEPS=scripts/deps -DBUILD_STATIC=ON
 RUN make -j$(nproc)
 
 # Create runtime base minimal image for the target platform executables
-FROM --platform=$TARGETPLATFORM alpine:latest as runtime
+FROM --platform=$TARGETPLATFORM alpine:$ALPINE_VERSION as runtime
 
+ARG ALPINE_VERSION
 ARG BUILDPLATFORM
 
 ARG XMRIG_VERSION
-ARG VERSION=1.0.1
-COPY --from=builder /xmrig/build/xmrig /usr/bin/
+ARG VERSION
+
+# Add curl for http healthcheck
+RUN apk update && \
+    apk upgrade && \
+    apk add curl && \
+    rm /var/cache/apk/*
+
+# Create a user & group & chown all the files to the app user
+RUN addgroup -g 1000 tari && \
+    adduser -u 1000 -g 1000 -S tari -G tari && \
+    mkdir -p /home/tari && \
+    chown tari:tari /home/tari
+
+COPY --chown=tari:tari --from=builder /xmrig/build/xmrig /usr/local/bin/
 
-# Create a user & group
-RUN addgroup -g 1000 tari && adduser -u 1000 -g 1000 -S tari -G tari
-RUN mkdir -p /home/tari && chown tari.tari /home/tari
-# Chown all the files to the app user.
 USER tari
 ENV dockerfile_version=$VERSION
 ENV dockerfile_build_arch=$BUILDPLATFORM
+ENV alpine_version=$ALPINE_VERSION
 ENV xmrig_version=$XMRIG_VERSION
 
 RUN echo -e "\
@@ -58,4 +74,4 @@ RUN echo -e "\
 }\
 " > /home/tari/.xmrig.json
 
-ENTRYPOINT [ "/usr/bin/xmrig" ]
+ENTRYPOINT [ "/usr/local/bin/xmrig" ]