add github output warnings

Author: plowsof

.github/workflows/build-docker.yml

@@ -71,12 +71,10 @@ jobs:
         run: |
           CDN_URL="https://downloads.getmonero.org"
           if ! wget --spider -q "$CDN_URL/hashes-$VERSION"; then
-            echo "Webseed FAILED: hashes-$VERSION"
-            #exit 1
+            echo "::warning title=Torrent-Webseed-URLs::FAILED: $CDN_URL/hashes-$VERSION"
           fi
           if ! wget --spider -q "$CDN_URL/hashes-$VERSION_GUI"; then
-            echo "Webseed FAILED: hashes-$VERSION_GUI"
-            #exit 1
+            echo "::warning title=Torrent-Webseed-URLs::FAILED: $CDN_URL/hashes-$VERSION_GUI"
           fi
           for file in $(awk '/monero-/ {print $2}' "hashes.txt"); do
             dir=cli
@@ -87,10 +85,7 @@ jobs:
             fi
             url=$CDN_URL/${part}/${dir}/${file}
             if ! wget --spider -q "$url"; then
-              echo "Webseed FAILED: $url"
-              #exit 1
-            else
-              echo "Webseed OK: $url"
+              echo "::warning title=Torrent-Webseed-URLs::FAILED: $url"
             fi
           done