revertme: (AppMap) Run install-action

.github/workflows/main.yml

@@ -30,6 +30,22 @@ jobs:
         with:
           bundler-cache: true
 
+      # Begin AppMap CI language agent installation.
+      # This snippet can be safely removed once the AppMap language agent has been
+      # added to the project dependencies, and appmap.yml has been created.
+      - name: Enable appmap gem update
+        run: bundle config unset deployment
+      - name: Install AppMap tools
+        id: install-appmap
+        uses: getappmap/install-action@v1
+        with:
+          project-type: bundler
+      - name: Commit changes
+        uses: EndBug/add-and-commit@v9
+        with:
+          message: "ci: Add AppMap language agent and appmap.yml"
+      # End AppMap CI language agent installation
+
       - name: Run tests
         run: bundle exec rails test
-```
+```