💚(ci) improve submodule usage

- remove deplucate declaration
- simplify helmfile
- use symlink

.github/workflows/docker-hub.yml

@@ -42,7 +42,7 @@ jobs:
         name: Load sops secrets
         uses: rouja/actions-sops@main
         with:
-          secret-file: .github/workflows/secrets/numerique-gouv/people/secrets.enc.env
+          secret-file: secrets/numerique-gouv/people/secrets.enc.env
           age-key: ${{ secrets.SOPS_PRIVATE }}
       -
         name: Login to DockerHub
@@ -86,7 +86,7 @@ jobs:
         name: Load sops secrets
         uses: rouja/actions-sops@main
         with:
-          secret-file: .github/workflows/secrets/numerique-gouv/people/secrets.enc.env
+          secret-file: secrets/numerique-gouv/people/secrets.enc.env
           age-key: ${{ secrets.SOPS_PRIVATE }}
       -
         name: Login to DockerHub
@@ -128,7 +128,7 @@ jobs:
         name: Load sops secrets
         uses: rouja/actions-sops@main
         with:
-          secret-file: .github/workflows/secrets/numerique-gouv/people/secrets.enc.env
+          secret-file: secrets/numerique-gouv/people/secrets.enc.env
           age-key: ${{ secrets.SOPS_PRIVATE }}
       -
         name: Call argocd github webhook

.github/workflows/people.yml

@@ -347,7 +347,7 @@ jobs:
         name: Load sops secrets
         uses: rouja/actions-sops@main
         with:
-          secret-file: .github/workflows/secrets/numerique-gouv/people/secrets.enc.env
+          secret-file: secrets/numerique-gouv/people/secrets.enc.env
           age-key: ${{ secrets.SOPS_PRIVATE }}
       
       - name: Setup Node.js