[#1545] .github: Auto assign new issues to the project

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

.github/workflows/project.yml

@@ -0,0 +1,18 @@
+name: Add issues to NeoFS Core project
+
+on:
+  issues:
+    types:
+      - opened
+
+jobs:
+  add-to-project:
+    name: Add issue to project
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/add-to-project@main
+        with:
+          project-url: https://github.com/orgs/nspcc-dev/projects/1
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          labeled: triage
+          label-operator: OR