6.11.0

This release follows up on the 6.10 release with a fix for Mapbox vector layers rendered over other layers. A handful of other fixes and features are included. See below for more detail.

#13195 - Use getFeaturesInExtent (@ahocevar)
#13200 - Use interpolate option in Sea Level example (@mike-000)
#13201 - Fix typo in example description (@mike-000)
#13177 - Use ecoregions data (@tschaub)
#13198 - Avoid failure if existing target has no background color (@tschaub)
#13186 - Add getDataAtPixel() method for WebGL (@mike-000)
#13196 - typo fix for cog-stretch example (@bradh)
#13190 - Fix base vector layer template generics (@ahocevar)
#13180 - Always use ES modules from geotiff.js (@ahocevar)
#13179 - Use Buffer and data uri when Blob is not available (@ahocevar)
#13178 - Use background property for vector layers (@tschaub)
#13175 - Allow nodejs 12 to build the examples again (@MoonE)
#13176 - Add attributions and attributionsCollapsible options to ol/source/DataTile (@mike-000)
#13171 - Correct scale bar in EPSG:4326 (@mike-000)
#13168 - Release 6.10.0 (@openlayers)

<details> <summary>Dependency Updates</summary>

#13182 - Bump eslint from 8.5.0 to 8.6.0 (@openlayers)
#13184 - Bump @rollup/plugin-node-resolve from 13.1.1 to 13.1.2 (@openlayers)
#13183 - Bump @babel/core from 7.16.5 to 7.16.7 (@openlayers)
#13185 - Bump webpack-dev-server from 4.7.1 to 4.7.2 (@openlayers)
#13181 - Bump @babel/preset-env from 7.16.5 to 7.16.7 (@openlayers)

</details>