fix: Use GitHub syntax to get secrets

Author: seanpoulter

.github/workflows/ci.yml

@@ -39,11 +39,11 @@ jobs:
         run: |
           npm test
         env:
-          BROWSER_STACK_ACCESS_KEY: $(BROWSER_STACK_ACCESS_KEY)
-          BROWSER_STACK_USERNAME: $(BROWSER_STACK_USERNAME)
-          # BUNDLEWATCH_GITHUB_TOKEN: $(BUNDLEWATCH_GITHUB_TOKEN)
-          SAUCE_ACCESS_KEY: $(SAUCE_ACCESS_KEY)
-          SAUCE_USERNAME: $(SAUCE_USERNAME)
+          BROWSER_STACK_ACCESS_KEY: ${{ secrets.BROWSER_STACK_ACCESS_KEY }}
+          BROWSER_STACK_USERNAME: ${{ secrets.BROWSER_STACK_USERNAME }}
+          # BUNDLEWATCH_GITHUB_TOKEN: ${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}
+          SAUCE_ACCESS_KEY: ${{ secrets.SAUCE_ACCESS_KEY }}
+          SAUCE_USERNAME: ${{ secrets.SAUCE_USERNAME }}
           TEST_BROWSERS: 'ChromeHeadlessNoSandbox,FirefoxHeadless,sl_edge,sl_safari,sl_ios_safari,bs_android_chrome'
 
       - name: Save test results