💚(ci) fix jobs after migration

The repository migration broke the CI. To fix it, we removed the
dependency on the secrets repository.

.github/workflows/helmfile-linter.yaml

@@ -2,6 +2,7 @@ name: Helmfile lint
 run-name: Helmfile lint
 
 on:
+  push:
   pull_request:
     branches:
       - 'main'
@@ -12,11 +13,18 @@ jobs:
     container:
       image: ghcr.io/helmfile/helmfile:latest
     steps:
-      -
-        uses: numerique-gouv/action-helmfile-lint@main
-        with:
-          app-id: ${{ secrets.APP_ID }}
-          age-key: ${{ secrets.SOPS_PRIVATE }}
-          private-key: ${{ secrets.PRIVATE_KEY }}
-          helmfile-src: "src/helm"
-          repositories: "impress,secrets"
+    -
+      name: Checkout repository
+      uses: actions/checkout@v4
+    -
+      name: Helmfile lint
+      shell: bash
+      run: |
+        set -e
+        HELMFILE=src/helm/helmfile.yaml
+        environments=$(awk '/environments:/ {flag=1; next} flag && NF {print} !NF {flag=0}' "$HELMFILE" | grep -E '^[[:space:]]{2}[a-zA-Z]+' | sed 's/^[[:space:]]*//;s/:.*//')
+        for env in $environments; do
+          echo "################### $env lint ###################"
+          helmfile -e $env -f $HELMFILE lint || exit 1
+          echo -e "\n"
+        done