add workflow to update flake inputs

.forgejo/workflows/nix-inputs-update.yml

@@ -0,0 +1,18 @@
+name: "Update Flake Packages ❄️"
+on:
+  workflow_dispatch:
+jobs:
+  updateFlakePackages:
+    runs-on: native
+    steps:
+      - run: git clone -q https://forgejo:$GITHUB_TOKEN@git.antoinevaure.fr/$GITHUB_REPOSITORY .
+      - run: pwd
+      - run: ls -la
+      - run: echo ${{join([env.FORGEJO_WORKSPACE, env.GITHUB_REPOSITORY ], '/')}}
+      - run: pwd
+        working-directory: ${{join([env.FORGEJO_WORKSPACE, env.GITHUB_REPOSITORY], '/')}}
+      - run: git checkout $GITHUB_REF
+        working-directory: ${{ env.GITHUB_REPOSITORY }}
+      - name: Update flake packages
+        working-directory: ${{ env.GITHUB_REPOSITORY }}
+        uses: https://github.com/selfuryon/nix-update-action@v1.1.0