release trigger workflow

.github/workflows/release.yml

@@ -0,0 +1,10 @@
+name: Release
+
+on: workflow_dispatch
+
+jobs:
+  release_trigger:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: ./ci/release_branch.sh

ci/release_branch.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+function release_tag {
+	git ls-remote --tags https://github.com/battlmonstr/silkworm.git | grep capi | cut -d '-' -f 2 | while read tag
+	do
+		if ! git branch | grep "release/$tag" > /dev/null
+		then
+			echo $tag
+			break
+		fi
+	done
+}
+
+tag=$(release_tag)
+
+if [[ -z "$tag" ]]
+then
+	echo "release tag not found"
+	exit 1
+fi
+
+branch="release/$tag"
+
+echo "release tag: $tag"
+echo "release branch: $branch"
+
+git checkout -b "$branch"
+git push --set-upstream origin "$branch"