ci: create "Release" CI workflow (#205)

* ci: create "Release" CI workflow

* docs: update RELEASE.md file

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+---
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  create:
+    name: Create
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout ${{ github.repository }}
+        uses: actions/checkout@v6.0.2
+        with:
+          fetch-depth: 0
+          ref: "${{ github.ref }}"
+      - name: Create release
+        uses: elgohr/Github-Release-Action@c5ea99036abb741a89f8bf1f2cd7fba845e3313a # v5
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          title: ${{ github.ref_name }}
+          tag: ${{ github.ref_name }}
+      - name: Bump tags
+        uses: fischerscode/tagger@5ca3fa63ce3003fb7183cae547644b29f3b632be # v0.2.0
+        with:
+          prefix: v

RELEASE.md

@@ -0,0 +1,21 @@
+# Release
+
+## Create release
+
+Do not manually draft a release.
+
+To start a release, create a release tag at the commit you want using the commands
+below.
+
+```shell
+git tag -a "v1.2.3" -m "v1.2.3"
+git push origin "v1.2.3"
+```
+
+## Publish GitHub Action to the marketplace
+
+1. Go to the [Releases page](https://github.com/fjogeleit/http-request-action/releases)
+and select the latest release that was just created.
+2. Select "Edit" button.
+3. Select "Publish this Action to the GitHub Marketplace" checkbox.
+4. Select "Update release" button.