GHA: tidy up apt commands

- drop `--quiet 2` option where used, to have uniform output.
- replace `apt` with `apt-get` in one job. sync options with rest.
- replace deprecated `apt-key` command with the alternative recommended
  by `apt-key(8)`.
- drop stray `cd /tmp`, no longer needed after migrating to GHA.
- shorten `--option Dpkg::Use-Pty=0` to `-o Dpkg::Use-Pty=0`.
- add `-o Dpkg::Use-Pty=0` to hide `apt-get` progress bars taking
  vertical log space, where missing.
- drop `-y --no-install-suggests --no-install-recommends` `apt-get`
  options. They are the default in the ubuntu-24.04 image.
- GHA/distcheck: move `name:` to top in steps where not there.
- scripts/cijobs.pl: catch `apt-get` lines with the `-o` option.

Closes #16127

.github/workflows/checkdocs.yml

@@ -46,9 +46,8 @@ jobs:
   #      - name: install prereqs
   #        run: |
   #          sudo rm -f /etc/apt/sources.list.d/microsoft-prod.list
-  #          sudo apt-get update -y
-  #          sudo apt-get install -y --no-install-suggests --no-install-recommends \
-  #            python3-proselint
+  #          sudo apt-get -o Dpkg::Use-Pty=0 update
+  #          sudo apt-get -o Dpkg::Use-Pty=0 install python3-proselint
   #
   #      # config file help: https://github.com/amperser/proselint/
   #      - name: create proselint config