feat(ci): compile, mirror

if it compiles it works

.github/workflows/checks.yml

@@ -0,0 +1,47 @@
+name: Checks
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+env:
+  SSH_PUB_KEY:
+    ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH9KSzBv3mfRAq7tOOU6/J9htV/+UTwro8q/JkO97HwO clement2104.boillot@gmail.com
+
+jobs:
+  compiles:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Nix cache
+        uses: cachix/install-nix-action@v20
+        with:
+          nix_path: nixpkgs=channel:nixos-23.05
+
+      - name: Compiles
+        run: nix build
+
+  mirror:
+    needs: [ compiles ]
+    if: ${{ !github.event.pull_request }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install SSH key
+        uses: shimataro/ssh-key-action@v2
+        with:
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          known_hosts: $SSH_PUB_KEY
+
+      - name: Push to epitech
+        run: |
+          git fetch --unshallow origin
+          git remote add epitech "${{ secrets.MIRROR_REPO }}"
+          git push epitech --force