fresh install using ppa:mythbuntu/32 puts repository key in old location

[jfabernathy]

• Platform:
  Linux Mint 21/Ubuntu 22.04
  Linux den-pc 5.15.0-56-generic WebFrontend: Allow the main pages to be bookmarked #62-Ubuntu SMP Tue Nov 22 19:54:14 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

• MythTV version:
  v32.0+fixes.202211292336.44f88ed468~ubuntu22.04.1

• Package version:
  ppa:mythbuntu/32

• Component:
  install apt key

What steps will reproduce the bug?

fresh Linux install with fresh MythTV install

How often does it reproduce? Is there a required condition?

What is the expected behaviour?

The current installation process on a Clean OS puts the mythbuntu ppa key in /etc/apt/trusted.gpg. apt-key is deprecated and wants it as a separate file in the directory /etc/apt/trusted.gpg.d/

What do you see instead?

sudo apt-key export 1504888C | sudo gpg --dearmour -o /etc/apt/trusted.gpg.d/mythbuntu.gpg

Then I delete the trusted.gpg file.

Additional information