Add workflow for building container

Based on equivalent workflow in edm

.github/workflows/container.yml

@@ -0,0 +1,32 @@
+name: Build container
+
+on:
+  workflow_run:
+    workflows:
+      - "Build"
+    branches:
+      - "main"
+    types:
+      - completed
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  container:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    name: Build and push container
+    runs-on: ubuntu-latest
+    permissions:
+      actions: write
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.23.1'
+      - name: Make version
+        run: make version.go
+      - uses: ko-build/[email protected]
+      - run: ko build --bare

.ko.yaml

@@ -0,0 +1,3 @@
+defaultPlatforms:
+- linux/amd64
+- linux/arm64