refactor: renovate and docker

.devcontainer/Dockerfile

@@ -1,12 +0,0 @@
-FROM mcr.microsoft.com/vscode/devcontainers/base:ubuntu
-
-# Install Ruby and dependencies
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install ruby-full build-essential zlib1g-dev -y
-RUN echo '# Install Ruby Gems to ~/gems' >> ~/.bashrc && \
-    echo 'export GEM_HOME="$HOME/gems"' >> ~/.bashrc && \
-    echo 'export PATH="$HOME/gems/bin:$PATH"' >> ~/.bashrc
-RUN gem install jekyll bundler
-
-# Clean up
-RUN apt-get clean && rm -rf /var/lib/apt/lists/*

.devcontainer/devcontainer.json

@@ -1,16 +0,0 @@
-{
-    "name": "Jekyll Dev Container",
-    "build": {
-      "dockerfile": "Dockerfile"
-    },
-    "forwardPorts": [4000],
-    "customizations": {
-      "vscode": {
-        "extensions": [
-            "Shopify.ruby-lsp",
-            "ms-azuretools.vscode-docker"
-        ]
-      }
-    }
-  }
-  

install-asdf.sh

@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-# renovate: datasource=github-releases depName=asdf-vm/asdf
+# renovate: datasource=github-releases depName=asdf-vm/asdf versioning=semver
 ASDF_VERSION=v0.16.6
 
 add_line_to_file_if_not_exists() {