[fix] ci: remove github's scheduled actions

I'll run them on my own CI instead

.forgejo/workflows/check.yml

@@ -1,9 +1,12 @@
-on: [push]
+on:
+  push:
+  schedule:
+    - cron: '12 5 * * *'
 jobs:
   check:
     runs-on: nixos
     steps:
-      - uses: https://code.forgejo.org/actions/checkout@v4
+      - uses: "https://code.forgejo.org/actions/checkout@v4"
       - run: nix --version
       - run: nix flake check --keep-going --verbose
   build:
@@ -11,10 +14,27 @@ jobs:
     strategy:
       matrix:
         target:
+          - audiomenu
           - docs
-          - nvim
+          - jpassmenu
           - nixosConfigurations.vm.config.system.build.toplevel
+          - nvim
     steps:
-      - uses: https://code.forgejo.org/actions/checkout@v4
+      - uses: "https://code.forgejo.org/actions/checkout@v4"
       - run: nix --version
       - run: nix build --print-build-logs '.#${{ matrix.target }}'
+  update-lockfile:
+    needs: [check build]
+    runs-on: nixos
+    if: github.event_name == 'schedule'
+    steps:
+      - uses: "https://code.forgejo.org/actions/checkout@v4"
+      - run: nix --version
+      - run: nix flake update
+      - name: nix flake update
+        run: |
+          git config user.name 'forgejo-actions'
+          git config user.email 'forgejo-actions@noreply.salame.cl'
+          nix flake update --commit-lock-file
+      - run: nix flake check --keep-going --verbose
+      - run: git push

.github/workflows/check.yml

@@ -6,8 +6,9 @@ on:
       - ./**.nix
       - ./flake.lock
   pull_request:
-  schedule:
-    - cron: 5 4 * * 5 # At 04:05 on Friday.
+  # scheduled runs are run on my own infrastructure
+  # schedule:
+  #   - cron: 5 4 * * 5 # At 04:05 on Friday.
 
 jobs:
   check: