Sanitize input to decode_length_seconds

src/invidious/helpers/utils.cr

@@ -1675,7 +1675,7 @@ def make_client(url : URI, region = nil)
 end
 
 def decode_length_seconds(string)
-  length_seconds = string.split(":").map { |a| a.to_i }
+  length_seconds = string.gsub(/[^0-9:]/, "").split(":").map &.to_i
   length_seconds = [0] * (3 - length_seconds.size) + length_seconds
   length_seconds = Time::Span.new(length_seconds[0], length_seconds[1], length_seconds[2])
   length_seconds = length_seconds.total_seconds.to_i