chore: add create release pr workflow and shell script

.github/workflows/create-release-pr.yml

@@ -0,0 +1,32 @@
+name: Create release PR
+
+on:
+  workflow_dispatch:
+    inputs:
+      bump:
+        description: 'Version bump level'
+        required: true
+        default: patch
+        type: choice
+        options:
+          - patch
+          - minor
+          - major
+
+jobs:
+  create-release-pr:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: npm
+      - id: run-create-release-pr-sh
+        env:
+          BUMP: ${{ inputs.bump }}
+        run: |
+          # git config
+          git config user.name "GitHub Actions Bot"
+          git config user.email "<>"
+          ./scripts/create-release-pr.sh

scripts/.gitignore

@@ -0,0 +1,3 @@
+response.json
+pr-*.json
+body.md

scripts/create-release-pr.sh

@@ -0,0 +1,65 @@
+#! /bin/bash
+
+if [[ -z "$BUMP" ]]; then
+  echo "BUMP is required. major|minor|patch"
+  exit 1
+fi
+
+git fetch --all
+git checkout develop
+git pull
+
+npm version $BUMP --git-tag-version=false
+VERSION=$(npm pkg get version | sed 's/"//g')
+TAG="v$VERSION"
+BRANCH=release/$TAG
+TITLE=release: $TAG
+
+git checkout -b $BRANCH
+git commit -am "$TITLE"
+git merge origin/main -s ours
+
+git push --set-upstream origin $BRANCH
+
+gh api \                                                                                                                                                                                                                                                 ─╯
+  --method POST \
+  -H "Accept: application/vnd.github+json" \
+  -H "X-GitHub-Api-Version: 2022-11-28" \
+  /repos/{owner}/{repo}/releases \
+  -f tag_name=$TAG \
+  -f target_commitish="$BRANCH" \
+  -f name=$TAG \
+  -F draft=true \
+  -F prerelease=true \
+  -F generate_release_notes=true > release.json
+
+cat release.json | jq -r .body > body.md
+echo -e "\n\nDraft release: $(cat release.json | jq -r .html_url)" >> body.md
+
+for b in main develop; do 
+  gh api \
+    --method POST \
+    -H "Accept: application/vnd.github+json" \
+    -H "X-GitHub-Api-Version: 2022-11-28" \
+    /repos/{owner}/{repo}/pulls \
+    -f title="$TITLE" \
+    -f body="Created by GitHub Actions Bot" \
+    -f head="$BRANCH to $b" \
+    -f base="$b" > pr-$b.json
+
+  $PR_ID=$(cat pr-$b.json | jq -r .id)
+
+  gh api \
+    --method PATCH \
+    -H "Accept: application/vnd.github+json" \
+    -H "X-GitHub-Api-Version: 2022-11-28" \
+    /repos/{owner}/{repo}/pulls/$PR_ID \
+    -F 'body=@body.md'
+
+  # clean up temp files
+  # rm pr-$b.json
+done
+
+# clean up temp files
+# rm release.json
+# rm body.md