How do I delete a stubborn file in the Bin?
Assuming that the file tunnelBlick.tblk is in ~/.Trash, then one sure way of deleting this file is to boot to  Recovery Mode, (⌘R when restarting the Mac), and then in Terminal (on the Utilities menu)... use the following command, e.g.:

rm -f /Volumes/Macintosh\ HD/Users/Your_Short_Name/.Trash/tunnelBlick.tblk



The example command above assumes the main Startup volume is Macintosh HD, change as needed.
The Your_Short_Name is that which you normally see in Finder as the name on your Home folder.


Then type reboot and press enter to restart the Mac back to normal mode boot.

NOTE: The rm command, especially with the -f option is potentially destructive if the target is not properly typed. Make sure the command is properly typed before executing. You can also first try without the -f option and the see if e.g.:

ls /Volumes/Macintosh\ HD/Users/Your_Short_Name/.Trash/tunnelBlick.tblk


Returns anything, and is so, then use the -f option.



Update: Based on the answer to the question I asked in the comment under your question, you would use the following command from Recovery Mode, (⌘R when restarting the Mac):

rm -f /Volumes/Macintosh\ HD/Users/Your_Short_Name/Library/CloudStorage/iCloud\ Drive/.Trash/tunnelBlick.tblk


With the same caveats applying:


The example command above assumes the main Startup volume is Macintosh HD, change as needed.
The Your_Short_Name is that which you normally see in Finder as the name on your Home folder.




Note: You can first try from normal mode:

rm -f /Users/Your_Short_Name/Library/CloudStorage/iCloud\ Drive/.Trash/tunnelBlick.tblk


If that doesn't work you can also try prefacing the command with sudo; however. if it will not delete from normal mode then boot to recovery mode.