Adjust firmware GitHub building actions

.github/workflows/build-repeater-mqtt-firmwares.yml

@@ -37,7 +37,7 @@ jobs:
         uses: softprops/action-gh-release@v2
         if: startsWith(github.ref, 'refs/tags/')
         with:
-          name: Repeater MQTT Firmware ${{ env.RELEASE_VERSION }}
+          name: Repeater ${{ env.RELEASE_VERSION }}
           body: ""
           draft: true
           files: out/*