feat: Add scp plugin build

.woodpecker.yml

@@ -0,0 +1,9 @@
+publish:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.merp.digital/${CI_REPO_OWNER}/woodpecker-scp
+      registry: git.merp.digital
+      tags: develop
+      username: ${CI_REPO_OWNER}
+      password:
+        from_secret: cb_token

Dockerfile

@@ -0,0 +1,5 @@
+FROM alpine
+ADD plugin.sh /bin/
+RUN chmod +x /bin/plugin.sh
+RUN apk -Uuv add openssh
+ENTRYPOINT /bin/plugin.sh

plugin.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+mkdir -p /root/.ssh
+echo "${PLUGIN_SSH_KEY}" > "/root/.ssh/id_rsa"
+echo "${PLUGIN_SSH_KNOWN_HOSTS}" > "/root/.ssh/known_hosts"
+scp -B ${PLUGIN_EXTRA_FLAGS} ${PLUGIN_SOURCE} ${PLUGIN_DESTINATION}