chore: fix formatting and add treefmt

.github/dependabot.yml

@@ -4,4 +4,4 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
-    assignees: [ "dadada" ]
+    assignees: ["dadada"]

.github/workflows/nix-flake-check.yml

@@ -1,26 +1,24 @@
 name: Continuous Integration
-
 on:
   pull_request:
   push:
     branches: [main]
-
 jobs:
   checks:
     name: "Checks"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v26
-      with:
-        nix_path: nixpkgs=channel:nixos-stable
-        extra_nix_config: |
-          experimental-features = nix-command flakes
-          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-          system-features = nixos-test benchmark big-parallel kvm
-    - uses: cachix/cachix-action@v14
-      with:
-        name: dadada
-        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-    - run: nix flake check
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v26
+        with:
+          nix_path: nixpkgs=channel:nixos-stable
+          extra_nix_config: |
+            experimental-features = nix-command flakes
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+            system-features = nixos-test benchmark big-parallel kvm
+      - uses: cachix/cachix-action@v14
+        with:
+          name: dadada
+          signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - run: nix flake check

.github/workflows/nix-flake-update.yml

@@ -3,7 +3,6 @@ on:
   workflow_dispatch: # allows manual triggering
   schedule:
     - cron: '0 0 * * 0' # runs weekly on Sunday at 00:00
-
 jobs:
   lockfile:
     runs-on: ubuntu-latest
@@ -16,6 +15,6 @@ jobs:
         uses: DeterminateSystems/update-flake-lock@v21
         with:
           pr-title: "Update flake.lock" # Title of PR to be created
-          pr-labels: |                  # Labels to be set on the PR
+          pr-labels: | # Labels to be set on the PR
             dependencies
             automated