infra: add second Gitea Actions runner for parallel CI

Registers valhalla-ci-runner-2 with the same ubuntu-latest labels to drain the job queue faster.

portainer-compose.yml

@@ -149,6 +149,29 @@ services:
     labels:
       - "com.centurylabs.watchtower.enable=false"
 
+  gitea-runner-ci:
+    container_name: gitea_runner_ci
+    image: gitea/act_runner:latest
+    restart: unless-stopped
+    networks:
+      - gitea_internal
+    environment:
+      - GITEA_INSTANCE_URL=https://gitea.ginnoir.com
+      - GITEA_RUNNER_REGISTRATION_TOKEN=${GITEA_RUNNER_REGISTRATION_TOKEN}
+      - GITEA_RUNNER_NAME=valhalla-ci-runner-2
+      - GITEA_RUNNER_LABELS=ubuntu-latest:docker://node:24-bookworm,node-24:docker://node:24-bookworm
+      - CONFIG_FILE=/data/config.yaml
+    volumes:
+      - /config/gitea/act_runner_ci:/data
+      - /var/run/docker.sock:/var/run/docker.sock
+      - /home/ginnoir/valhalla-lab:/valhalla-lab
+      - /config/caddy:/config/caddy
+    depends_on:
+      gitea:
+        condition: service_started
+    labels:
+      - "com.centurylabs.watchtower.enable=false"
+
   registry:
     container_name: registry
     image: registry:2