Migrate to GitHub Actions (#23)

* Migrate to GitHub Actions

* Fix formatting

Author: rfuest

.circleci/config.yml

@@ -0,0 +1,30 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  rustfmt:
+    name: Check formatting
+    strategy:
+      matrix:
+        version: ["eg-0.6", "eg-0.7", "eg-0.8", "eg-next"]
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - run: cd "${{ matrix.version }}" && cargo fmt --check
+
+  build:
+    name: Build examples
+    strategy:
+      matrix:
+        version: ["eg-0.6", "eg-0.7", "eg-0.8", "eg-next"]
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cd "${{ matrix.version }}" && cargo build

.github/workflows/ci.yml

@@ -15,7 +15,10 @@ use embedded_graphics_simulator::{
 };
 
 const SEVENT_SEGMENT_FONT: MonoFont = MonoFont {
-    image: ImageRaw::new_const(include_bytes!("assets/seven-segment-font.raw"), Size::new(224, 40)),
+    image: ImageRaw::new_const(
+        include_bytes!("assets/seven-segment-font.raw"),
+        Size::new(224, 40),
+    ),
     glyph_mapping: &StrGlyphMapping::new("0123456789", 0),
     character_size: Size::new(22, 40),
     character_spacing: 4,