Auto update Julia manifest (#980)

As discussed:
#978 (review)

.github/workflows/core_tests.yml

@@ -1,7 +1,7 @@
 name: Julia Tests
 on:
   push:
-    branches: [main, update/pixi-lock]
+    branches: [main, update/pixi-lock, update/julia-manifest]
     paths-ignore: [".teamcity/**"]
     tags: ["*"]
   pull_request:

.github/workflows/docs.yml

@@ -1,7 +1,7 @@
 name: Docs
 on:
   push:
-    branches: [main, update/pixi-lock]
+    branches: [main, update/pixi-lock, update/julia-manifest]
     paths-ignore: [".teamcity/**"]
   pull_request:
   merge_group:

.github/workflows/julia_auto_update.yml

@@ -0,0 +1,31 @@
+name: Julia auto update
+
+on:
+  schedule:
+  # At 03:00 on day 1 of the month
+    - cron: "0 3 1 * *"
+  # on demand
+  workflow_dispatch:
+
+jobs:
+  auto-update:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
+      - uses: prefix-dev/[email protected]
+        with:
+          pixi-version: "latest"
+      - name: Update pixi lock file
+        run: |
+          pixi run update-manifest-julia
+          pixi install
+      - uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          branch: update/julia-manifest
+          title: Update Julia manifest
+          commit-message: "Update Julia manifest"
+          body: Update Julia dependencies to the latest version.
+          author: "GitHub <[email protected]>"

pixi.toml

@@ -29,6 +29,7 @@ install-without-pre-commit = { depends_on = [
 install = { depends_on = ["install-without-pre-commit", "install-pre-commit"] }
 # Instantiate
 update-registry-julia = "julia --eval='using Pkg; Registry.update()'"
+update-manifest-julia = "julia --eval='using Pkg; Pkg.update()'"
 instantiate-julia = "julia --project --eval='using Pkg; Pkg.instantiate()'"
 initialize-julia = { depends_on = [
     "update-registry-julia",