update image to 4.1, smaller image, gem upgrades

Makefile

@@ -1,7 +1,7 @@
 name=adwerx/pronto-ruby
 
 image:
-	docker build -f Dockerfile . -t ${name}:${TAG} -t ${name}:latest
+	docker buildx build --platform linux/amd64,linux/arm64 -t ${name}:${TAG} -o type=registry .
 
 test: spec/fixtures/test.git
 	docker run -v "${CURDIR}:/runner" --workdir /runner --entrypoint /runner/dev_entrypoint.sh --rm ${name}:latest rspec

README.md

@@ -27,10 +27,10 @@ The docker image of this Action includes the following [Pronto Runners](https://
 
 # Inputs
 
-| name | description | default |
-| --- | --- | --- |
-| `runners` | Space-separated list of pronto runners to run. Must be the preinstalled runners from the list above. | `rubocop` |
-| `target` | The git target pronto will diff against (`-c`) | `origin/master` |
+| name      | description                                                                                          | default         |
+| --------- | ---------------------------------------------------------------------------------------------------- | --------------- |
+| `runners` | Space-separated list of pronto runners to run. Must be the preinstalled runners from the list above. | `rubocop`       |
+| `target`  | The git target pronto will diff against (`-c`)                                                       | `origin/master` |
 
 # Secrets
 
@@ -39,9 +39,9 @@ A GitHub token is available by default when using actions, but you must include
 Be sure to include the ENV variable in your job step:
 
 ```yaml
-    - uses: adwerx/pronto-ruby
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+- uses: adwerx/pronto-ruby
+  env:
+    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 ```
 
 That's it!
@@ -67,7 +67,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - run: git fetch origin master --depth=1
-      - uses: adwerx/pronto-ruby@v4.0
+      - uses: adwerx/pronto-ruby@main # use a tag version here
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 ```
@@ -94,7 +94,7 @@ name: Pronto
       - run: git fetch origin master --depth=1
       - uses: actions/setup-node@v1
       - run: yarn install --ignore-optional --ignore-scripts --frozen-lockfile --non-interactive
-      - uses: adwerx/pronto-ruby@v2.8
+      - uses: adwerx/pronto-ruby@main # use a tag version here
         with:
           runners: eslint_npm # ...
         env:

action.yml

@@ -25,7 +25,7 @@ inputs:
       origin/master
 runs:
   using: docker
-  image: "docker://docker.io/adwerx/pronto-ruby:4.0"
+  image: "docker://docker.io/adwerx/pronto-ruby:4.1"
   args:
     - run
     - -r