feat: Update actions

.github/workflows/check.yaml

@@ -1,8 +1,15 @@
+name: Flake checker
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
 jobs:
   nix_check:
-    name: Build Nix targets
+      name: Build Nix targets
-    runs-on: ubuntu-latest
+      runs-on: ubuntu-latest
-    steps:
+      steps:
-      - uses: actions/checkout@v4
+        - uses: actions/checkout@v4
-      - name: Check Nix flake inputs
+        - name: Check Nix flake inputs
-        uses: DeterminateSystems/flake-checker-action@main
+          uses: DeterminateSystems/flake-checker-action@main