[ci] Renamed NIX jobs and added ignore rules

.github/workflows/nix-ci.yml

@@ -0,0 +1,45 @@
+name: "NIX"
+
+# This determines when this workflow is run
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '.gitlab-ci.yml'
+      - '.gitignore'
+      - '.pre-commit-config.yaml'
+      - '*.md'
+      - 'LICENSE'
+      - 'pyproject.toml'
+      - 'package.xml'
+      - 'dependencies.rosintall'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '.gitlab-ci.yml'
+      - '.gitignore'
+      - '.pre-commit-config.yaml'
+      - '*.md'
+      - 'LICENSE'
+      - 'pyproject.toml'
+      - 'package.xml'
+      - 'dependencies.rosintall'
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  nix:
+    runs-on: "${{ matrix.os }}-latest"
+    strategy:
+      matrix:
+        os: [ubuntu, macos]
+    name: (${{ matrix.os }})
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v30
+      - uses: cachix/cachix-action@v15
+        with:
+          name: gepetto
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - run: nix build -L