Replace rust-musl-builder with more up-to-date builder

.devcontainer/Dockerfile.alpine

@@ -0,0 +1,8 @@
+FROM rust:1-alpine3.18
+
+ENV CARGO_BUILD_TARGET=x86_64-unknown-linux-musl
+
+RUN apk update && \
+    apk add bash musl-dev shadow && \
+    # Add a user for floki using the shadow utils
+    useradd -Um -s /bin/bash floki

.devcontainer/devcontainer.json

@@ -0,0 +1,5 @@
+{
+	"name": "floki",
+	"build": { "dockerfile": "Dockerfile.alpine" },
+	"remoteUser": "floki"
+}

CHANGELOG.md

@@ -21,6 +21,7 @@ Status: Available for use
 - Add `toml` function to tera templating engine so that floki templates
   can use `toml(file="<filepath>")` in order to load values.
 - Add `floki render` to print out the rendered configuration template.
+- Switch rust image to `rust:1-alpine3.18` as it's better maintained.
 
 ### Fixed