Fix HLS automatic test (#2572)

* mv automated test cleanup to tools.sh

check media file exists before streaming in test/ocTestStream.sh
fix automatic test ffmpeg detection
mv trap to tools
mv update_storage_config() to tools
enable S3 test

* fix video file check in test/ocTestStream.sh

* cleanup ci

* mv auto test owncast build-run to start_owncast()

* suppress cleanup errors

* fix style

* fix Browser Test paths

* use pull_request event for Browser Tests

* explicitly mention when test is skipped

* refactor shell scripts

test/ocTestStream.sh

@@ -85,7 +85,13 @@ else
   rm -f list.txt
   for file in $CONTENT
   do
-    echo "file '$file'" >> list.txt
+    if [[ -f "$file" ]]; then
+      echo "file '$file'" >> list.txt
+    else
+      echo "ERROR: File not found: $file"
+      exit 1
+    fi
+    
   done
 
   function finish {