PMM-7 make the workflow run on call and dispatch

.github/workflows/devcontainer.yml

@@ -1,10 +1,19 @@
 name: Devcontainer
 on:
-  push:
-    branches:
-      - main
-
   workflow_dispatch:
+    inputs:
+      branch:
+        description: "The branch to build the devcontainer from"
+        default: "main"
+        required: true
+        type: string
+  workflow_call:
+    inputs:
+      branch:
+        description: "The branch to build the devcontainer from"
+        default: "main"
+        required: true
+        type: string
 
 jobs:
   devcontainer:
@@ -18,11 +27,13 @@ jobs:
 
     env:
       LAB_DEVCONTAINER_IMAGE: perconalab/pmm-server:dev-container
-      GH_DEVCONTAINER_IMAGE: ghcr.io/percona/pmm-server:dev-container
+      GH_DEVCONTAINER_IMAGE: ghcr.io/percona/pmm:dev-container
 
     steps:
       - name: Check out code
         uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.inputs.branch }}
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2