ci: Add workflow for plugin validation

.github/workflows/validate.yml

@@ -25,7 +25,7 @@ jobs:
       with:
         args: zip -qr geomap-wms-panel.zip geomap-wms-panel
     - name: Run validator
-      run: npx --yes @grafana/plugin-validator@latest
+      run: npx --yes @grafana/plugin-validator@latest -sourceCodeUri file://. geomap-wms-panel.zip # https://github.com/grafana/plugin-validator
     # - name: Clean up
     #   run: rm -r geomap-wms-panel.zip
 

README.md

@@ -1,4 +1,4 @@
-![Build](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/build.yml/badge.svg) ![Test](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/test.yml/badge.svg) ![e2e Playwright](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/playwright.yml/badge.svg)
+![Build](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/build.yml/badge.svg) ![Test](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/test.yml/badge.svg) ![e2e Playwright](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/playwright.yml/badge.svg) ![Plugin validation](https://github.com/felix-mu/geomap-wms-panel/actions/workflows/validate.yaml/batch.svg)
 
 # Geomap WMS Panel Plugin
 This plugin evolved from the [Orchestra Cities Map Panel-Plugins](https://github.com/orchestracities/map-panel). It extends original version by the functionality of the intergration of an [OGC Web Map Service](https://www.ogc.org/standard/wms/) (**WMS version 1.3.0**) as a base map layer. Additionally the plugin ships with an interactive filter tool to query the data by spatial conditions.