EDIT 2022: This issue popped back up as I was attempting upload to Testflight
FURTHER EDIT: Fastlane 2.204.2 is the official fix - bump to that one or remove the explicit version dependency for 2.204.1 to resolve
I started seeing the same issue this week after not touching the files for quite some time (we use Deliver and Pilotfiles for upload/submissions). From Fastlanes release pages: "There is an issue with how App Store Connect API is handling /v1/apps?filter[bundleId]= where the bundle identifier is greater than 25 characters."
As an interim solution please update fastlane versions to point to 2.204.1 (had to manually specify the version in our Gemfile) this is going to be a temp fix though, so watch for upcoming releases and flip back accordingly
Reference https://github.com/fastlane/fastlane/releases