Update dev workflow (#32)

Co-authored-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/validate.yml

@@ -0,0 +1,25 @@
+name: validate
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'releases/v*'
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    branches:
+      - 'master'
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Validate
+        run: docker buildx bake validate