WIP: Run examples in CI

.github/workflows/test_examples.yml

@@ -0,0 +1,57 @@
+name: Test examples
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - 'AUTHORS.md'
+      - 'CITATION.bib'
+      - 'CONTRIBUTING.md'
+      - 'LICENSE.md'
+      - 'NEWS.md'
+      - 'README.md'
+      - '.github/workflows/CompatHelper.yml'
+      - '.github/workflows/TagBot.yml'
+      - '.gitignore'
+  pull_request:
+    paths-ignore:
+      - 'AUTHORS.md'
+      - 'CITATION.bib'
+      - 'CONTRIBUTING.md'
+      - 'LICENSE.md'
+      - 'NEWS.md'
+      - 'README.md'
+      - '.github/workflows/CompatHelper.yml'
+      - '.github/workflows/TagBot.yml'
+      - '.gitignore'
+
+# Cancel redundant CI tests automatically
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        julia-version: ['1.9', '1']
+        julia-arch: x64
+        os: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: ${{ matrix.julia-arch }}
+      - uses: julia-actions/julia-buildpkg@v1
+      - name: Example 1
+        shell: julia --color=yes {0}
+        run: |
+          using Pkg
+          @info "DEBUG" pwd()
+          Pkg.activate(".")
+          Pkg.instantiate()
+          include(joinpath("examples", "t8_step0_helloworld.jl"))