Add license-finder check in github CI

Author: fauresebast

.github/workflows/ci.yml

@@ -5,6 +5,27 @@ on:
   - pull_request
 
 jobs:
+  license_checks:
+    name: License checks
+    timeout-minutes: 15
+    needs:
+      - build_docker_image
+    runs-on: '${{ fromJSON(needs.build_docker_image.outputs.runs_on) }}'
+    if: '${{ !needs.build_docker_image.outputs.is_master_or_merge_queue && !needs.build_docker_image.outputs.skip_run }}'
+    container:
+      image: 248848202840.dkr.ecr.eu-west-1.amazonaws.com/${{ needs.build_docker_image.outputs.image_repository }}:${{ github.sha }}
+      credentials:
+        username: '${{ secrets.AWS_ECR_USERNAME }}'
+        password: '${{ secrets.AWS_ECR_PASSWORD }}'
+    steps:
+      - name: Run license checks
+        run: |
+          bundle exec license_finder || (cat <<-END && exit 1)
+
+            You seem to be introducing a new license into our stack, please reach out to
+            #licenses-tech-stack on slack to get guidance on the topic.
+          END
+
   test:
     runs-on: ubuntu-latest
     strategy:

.tool-versions

@@ -0,0 +1 @@
+ruby 3.4.7

Gemfile

@@ -1,4 +1,6 @@
 source 'https://rubygems.org'
 gemspec
 
-
+group :test, :development do
+  gem 'license_finder', require: false
+end