Upgrade web-ext Github action to avoid deprecation

Author: stefanw

.github/workflows/release.yml

@@ -58,13 +58,13 @@ jobs:
           asset_content_type: application/zip
       - name: "web-ext build"
         id: web-ext-build
-        uses: kewisch/action-web-ext@d5376aebf5a5f167924728cf9b43d6e9e8ee10e0
+        uses: kewisch/action-web-ext@d3e19fc24c09986d4ab16fe99322701a1fa2d4a7
         with:
           cmd: build
           source: ./dist/bibbot
       - name: "web-ext sign"
         id: web-ext-sign
-        uses: kewisch/action-web-ext@d5376aebf5a5f167924728cf9b43d6e9e8ee10e0
+        uses: kewisch/action-web-ext@d3e19fc24c09986d4ab16fe99322701a1fa2d4a7
         with:
           cmd: sign
           source: ${{ steps.web-ext-build.outputs.target }}