ci: add release notifier workflow

.github/workflows/_release-notifier.yml

@@ -0,0 +1,27 @@
+---
+# This workflow is centrally managed in https://github.com/LizardByte/.github/
+# Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in
+# the above-mentioned repo.
+
+# Create a blog post for a new release and open a PR to the blog repo
+
+name: Release Notifications
+permissions: {}
+
+on:
+  release:
+    types:
+      - released  # this triggers when a release is published, but does not include pre-releases or drafts
+
+jobs:
+  update-blog:
+    name: Update blog
+    uses: LizardByte/.github/.github/workflows/__call-release-notifier.yml@master
+    if: github.repository_owner == 'LizardByte'
+    permissions:
+      contents: read
+    with:
+      gh_name: ${{ vars.GH_BOT_NAME }}
+    secrets:
+      GH_EMAIL: ${{ secrets.GH_BOT_EMAIL }}
+      GH_TOKEN: ${{ secrets.GH_BOT_TOKEN }}

README.md

@@ -10,6 +10,7 @@
 
 <div align="center">
   <a href="https://github.com/LizardByte/libvirtualhid"><img src="https://img.shields.io/github/stars/lizardbyte/libvirtualhid.svg?logo=github&style=for-the-badge" alt="GitHub stars"></a>
+  <a href="https://github.com/LizardByte/libvirtualhid/releases/latest"><img src="https://img.shields.io/github/downloads/lizardbyte/libvirtualhid/total.svg?style=for-the-badge&logo=github" alt="GitHub Releases"></a>
   <a href="https://github.com/LizardByte/libvirtualhid/actions/workflows/ci.yml?query=branch%3Amaster"><img src="https://img.shields.io/github/actions/workflow/status/lizardbyte/libvirtualhid/ci.yml.svg?branch=master&label=CI%20build&logo=github&style=for-the-badge" alt="GitHub Workflow Status (CI)"></a>
   <a href="https://codecov.io/gh/LizardByte/libvirtualhid"><img src="https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fapp.lizardbyte.dev%2Fdashboard%2Fshields%2Fcodecov%2Flibvirtualhid.json&style=for-the-badge&logo=codecov" alt="Codecov"></a>
   <a href="https://sonarcloud.io/project/overview?id=LizardByte_libvirtualhid"><img src="https://img.shields.io/sonar/quality_gate/LizardByte_libvirtualhid.svg?server=https%3A%2F%2Fsonarcloud.io&style=for-the-badge&logo=sonarqubecloud&label=sonarcloud" alt="SonarCloud"></a>