unify scheduled and main yamls (#670)

.github/workflows/main.yml

@@ -0,0 +1,32 @@
+name: Main
+
+on:
+  push:
+    branches: [main]
+  schedule:
+    - cron: "0 8,20 * * *"
+
+jobs:
+  unit-tests:
+    name: Unit tests
+    uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
+    with:
+      linux_5_9_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_5_10_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_6_0_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_nightly_6_0_arguments_override: "--explicit-target-dependency-import-check error"
+      linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error"
+
+  integration-test:
+    name: Integration test
+    uses: apple/swift-nio/.github/workflows/swift_matrix.yml@main
+    with:
+      name: "Integration test"
+      matrix_linux_command: "apt-get update -yq && apt-get install -yq jq && SWIFT_OPENAPI_GENERATOR_REPO_URL=file://${GITHUB_WORKSPACE} ./scripts/run-integration-test.sh"
+
+  example-packages:
+    name: Example packages
+    uses: apple/swift-nio/.github/workflows/swift_matrix.yml@main
+    with:
+      name: "Example packages"
+      matrix_linux_command: "./scripts/test-examples.sh"