Update CI rules

Author: khvzak

.github/workflows/main.yml

@@ -18,23 +18,23 @@ jobs:
           - x86_64-pc-windows-msvc
         include:
           - target: x86_64-unknown-linux-gnu
-            os: ubuntu-22.04
+            os: ubuntu-latest
           - target: i686-unknown-linux-gnu
-            os: ubuntu-22.04
+            os: ubuntu-latest
           - target: aarch64-unknown-linux-gnu
-            os: ubuntu-22.04
+            os: ubuntu-latest
           - target: x86_64-apple-darwin
             os: macos-latest
           - target: aarch64-apple-darwin
             os: macos-latest
           - target: x86_64-pc-windows-gnu
-            os: ubuntu-22.04
+            os: ubuntu-latest
           - target: i686-pc-windows-gnu
-            os: ubuntu-22.04
+            os: ubuntu-latest
           - target: x86_64-pc-windows-msvc
             os: windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@main
         with:
           submodules: true
       - uses: dtolnay/rust-toolchain@stable
@@ -75,16 +75,16 @@ jobs:
     needs: build
     strategy:
       matrix:
-        os: [ubuntu-22.04, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         include:
-          - os: ubuntu-22.04
+          - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
           - os: macos-latest
             target: x86_64-apple-darwin
           - os: windows-latest
             target: x86_64-pc-windows-msvc
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@main
         with:
           submodules: true
       - uses: dtolnay/rust-toolchain@stable
@@ -98,9 +98,9 @@ jobs:
 
   rustfmt:
     name: Rustfmt
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@main
         with:
           submodules: true
       - uses: dtolnay/rust-toolchain@stable