Add Gitea build, container tests and registry publication

ci/runner/agiledancers-runner.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=Agiledancers Gitea Actions runner
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+WorkingDirectory=%h/.local/share/agiledancers-runner
+EnvironmentFile=%h/.config/agiledancers-runner/environment
+ExecStart=%h/.local/bin/act_runner daemon --config %h/.local/share/agiledancers-runner/config.yaml
+Restart=on-failure
+RestartSec=10
+KillSignal=SIGTERM
+TimeoutStopSec=150
+
+[Install]
+WantedBy=default.target