Nix CI: add GH token (#1557)

.github/workflows/nix-build.yaml

@@ -23,6 +23,7 @@ jobs:
         install_url: https://nixos.org/nix/install
         extra_nix_config: |
           auto-optimise-store = true
+          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
           experimental-features = nix-command flakes
     - uses: cachix/cachix-action@v12
       with:

.github/workflows/nix-meson-ver-update.yaml

@@ -1,26 +0,0 @@
-name: "Nix & Meson: update version"
-
-on: [workflow_dispatch]
-
-jobs:
-  update:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Clone repository
-      uses: actions/checkout@v3
-    - name: Update flake and meson version
-      run: |
-        REGEX="([0-9]+(\.[0-9a-zA-Z]+)+)"
-
-        CRT_REV=$(git show-ref --tags --head --abbrev | head -n 1 | head -c 7)
-        TAG_REV=$(git show-ref --tags --abbrev | tail -n 1 | head -c 7)
-        CRT_VER=$(sed -nEe "/$REGEX/{p;q;}" meson.build | awk -F\' '{print $2}')
-        VERSION=$(git show-ref --tags --abbrev | tail -n 1 | tail -c +20)
-
-        if [[ $TAG_REV = $CRT_REV ]] || [[ $CRT_VER != $VERSION ]]; then
-          sed -Ei "s/$REGEX/$VERSION/g" meson.build
-          sed -Ei "s/$REGEX/$VERSION/g" flake.nix
-        fi
-    - uses: stefanzweifel/git-auto-commit-action@v4
-      with:
-        commit_message: "[gha] bump flake and meson version"

.github/workflows/nix-update.yaml

@@ -14,6 +14,7 @@ jobs:
         install_url: https://nixos.org/nix/install
         extra_nix_config: |
           auto-optimise-store = true
+          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
           experimental-features = nix-command flakes
     - name: Update lockfile
       run: nix/update-inputs.sh