Add flexible inputs to Actions Workflow for running e2e tests (#2961)

.github/workflows/e2e.yml

@@ -2,14 +2,22 @@ name: Run e2e tests
 
 on:
   workflow_dispatch:
-
+    inputs:
+      run-target:
+        description: Command line for running e2e tests
+        default: 'yarn e2e:ci'
+        required: true
+      platforms:
+        description: OS platforms to test on (list of strings in JSON format)"
+        default: '["ubuntu-20.04"]'
+        required: true
 jobs:
   run-e2e-tests:
     name: Run e2e tests
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: ${{ fromJSON(inputs.platforms) }}
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup-zui
@@ -21,7 +29,7 @@ jobs:
         uses: GabrielBB/xvfb-action@v1
         with:
           options: -screen 0 1280x1024x24
-          run: yarn e2e:ci
+          run: ${{ inputs.run-target }}
       - uses: actions/upload-artifact@v2
         if: failure() && steps.playwright.outcome == 'failure'
         with: