chore(ci): add versioning

.forgejo/workflows/release.yml

@@ -0,0 +1,60 @@
+name: release
+
+on:
+  push:
+    tags: ['*']
+
+enable-openid-connect: true
+
+jobs:
+  publish:
+    name: publish
+    runs-on: debian-latest
+    container: mcr.microsoft.com/dotnet/sdk:10.0@sha256:0d99ebf1ccad15037b5c98c9fe8979d6b8dbac23812feae2277a0b277b5c5ffa
+    steps:
+      - name: checkout
+        uses: https://code.geekeey.de/actions/checkout@54953ce9d6c7d0a9cbd89d185c5b2c7515358c5f # 1
+
+      - name: version
+        id: version
+        uses: ./.forgejo/actions/version
+
+      - name: dotnet pack
+        run: dotnet pack arcade.slnx -p:Version=${{ steps.version.outputs.version }}
+
+      - name: upload packages
+        uses: https://code.geekeey.de/actions/artifacts/push@ae8d20e174a8706675e6d54ebd3719a2802ea9dd # 1
+        with:
+          name: nuget-packages
+          path: artifacts/package/release
+          pattern: |
+            *.nupkg
+            *.snupkg
+
+      - name: publish to nuget
+        shell: bash
+        env:
+          AUDIENCE: "u:1:49f9431c-8baf-4432-8254-72fd1b00b8f9"
+        run: |
+          set -euo pipefail
+
+          if [[ -z "${ACTIONS_ID_TOKEN_REQUEST_URL:-}" || -z "${ACTIONS_ID_TOKEN_REQUEST_TOKEN:-}" ]]; then
+            echo "::error::OpenID Connect is not enabled. Set enable-openid-connect: true on the workflow or job."
+            exit 1
+          fi
+
+          response=$(curl --fail --silent --show-error \
+            --header "Authorization: bearer ${ACTIONS_ID_TOKEN_REQUEST_TOKEN}" "${ACTIONS_ID_TOKEN_REQUEST_URL}&audience=${AUDIENCE}")
+          token=$(printf '%s' "${response}" | grep --only-matching '"value":"[^"]*"' | cut --delimiter '"' --fields 4)
+
+          if [[ -z "${token}" ]]; then
+            echo "::error::Failed to obtain an OpenID Connect token from Forgejo."
+            exit 1
+          fi
+
+          echo "::add-mask::${token}"
+
+          feed="${{ forgejo.server_url }}/api/packages/${{ forgejo.repository_owner }}/nuget/index.json"
+
+          dotnet nuget add source --name forgejo --username forgejo-publish --password "$token" --store-password-in-clear-text "$feed"
+          dotnet nuget push "artifacts/package/release/*.nupkg" "artifacts/package/release/*.snupkg" --source forgejo --skip-duplicate