Add devcontainer configuration for CI and update lint-test-build workflow to use it

.devcontainer/devcontainer-ci.json

@@ -0,0 +1,10 @@
+// For the moment --platform is not supported in devcontainers/ci when
+// using docker compose, so in this devcontainer config file we are
+// using the Dockerfile directly to run actions in CI.
+//
+// https://github.com/devcontainers/cli/issues/404
+{
+  "build": {
+    "dockerfile": "../docker/Dockerfile.dev"
+  }
+}

.github/workflows/lint-test-build.yaml

@@ -18,7 +18,7 @@ jobs:
           {os: ubuntu-24.04, platform: linux/amd64},
           {os: ubuntu-24.04-arm, platform: linux/arm64}
         ]
-    
+
     name: Lint, test, and build the code
     runs-on: ${{ matrix.vars.os }}
     timeout-minutes: 20
@@ -40,8 +40,9 @@ jobs:
       - name: Run lint, test, and build
         uses: devcontainers/ci@v0.3
         with:
-          platform: ${{ matrix.vars.platform }}
           push: never
+          configFile: .devcontainer/devcontainer-ci.json
+          platform: ${{ matrix.vars.platform }}
           runCmd: >
             npm install && \
             go mod download && \