fix gha docker example

Author: MikeMcC399

docs/guides/continuous-integration/github-actions.mdx

@@ -154,18 +154,18 @@ the above example to select Chrome instead of the default browser Electron, add
 For more examples, see the action's
 [Browser](https://github.com/cypress-io/github-action#browser) section.
 
-## Testing in Chrome and Firefox with Cypress Docker Images
+## Testing with Cypress Docker Images
 
 GitHub Actions provides the option to specify a container image for the job.
 Cypress offers various
 [Docker Images](https://github.com/cypress-io/cypress-docker-images) for running
 Cypress locally and in CI.
 
-Below we add the `container` attribute using a
+Below we extend the previous example by adding the `container` attribute using a
 [Cypress Docker Image](https://github.com/cypress-io/cypress-docker-images)
-built with Google Chrome and Firefox. For example, this allows us to run the
-tests in Firefox by passing the `browser: firefox` attribute to the
-[Cypress GitHub Action](https://github.com/marketplace/actions/cypress-io).
+built with Google Chrome `107`. This allows us to fix our test to a specific
+browser version without any influence due to browser version changes in the
+GitHub runner image.
 
 ```yaml
 name: Cypress Tests using Cypress Docker Image
@@ -175,18 +175,16 @@ on: push
 jobs:
   cypress-run:
     runs-on: ubuntu-22.04
-    container: cypress/browsers:node12.18.3-chrome87-ff82
+    container: cypress/browsers:node18.12.0-chrome107
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-
-      # Install NPM dependencies, cache them correctly
-      # and run all Cypress tests
       - name: Cypress run
         uses: cypress-io/github-action@v5
         with:
-          # Specify Browser since container image is compiled with Firefox
-          browser: firefox
+          build: npm run build
+          start: npm start
+          browser: chrome
 ```
 
 ## Caching Dependencies and Build Artifacts