chore(linux): Fix bugs, add dependency and update documentation

This no longer suppresses the output of cleanup.

This change updates gha-ubuntu-packaging to a version that creates
a non-empty changelog entry. This prevents a warning during
package build.

For integration tests ibus-keyman requires keyman-system-service to
be built, so we add this as a dependency.

When running the integration tests, we provide a test service that
replaces `keyman-system-service`. DBus needs the updated `.service`
files in the `services` directory so that it will use the test
service. This change outputs an error and returns an non-zero
exit code if it can't find the `services` directory, which usually
means that `keyman-system-service` didn't get build.

fix(linux): Correctly open files linked from help page

auto: increment master version to 17.0.178

This works around the issue where browsers installed as snap package
can't access files under `$HOME/.local`. Instead we now only open
external links with the browser. Local non-html files we open with
the default app, and links to local html file we open in webview
(like we did previously with `welcome.htm` files).

Fixes #9600.

docs(common): Fix documentation for `builder_describe_internal_dependency`

chore(linux): Add coverage action to `ibus-keyman/build.sh`

Addresses code review comment.

auto: increment master version to 17.0.177

This addresses code review comments.

refactor(linux): Rename defines to clarify purpose 🏘️

chore(oem/fv/android): Update Gradle to 7.4

auto: increment master version to 17.0.176

Fixes #9581.

chore(linux): Split startup process

auto: increment master version to 17.0.175

refactor(linux): Reformat file

- fix 1..6 char Unicode escapes with an unrolled loop

- for feat(core): ldml drop \u1234 format 🙀  #9515

- temporarily roll back change to test.xml

- for feat(core): ldml drop \u1234 format 🙀  #9515

- for now, convert \u{1234} to \u1234 before going into
UnicodeSet.

- for feat(core): ldml drop \u1234 format 🙀  #9515

- hardware types isn't a fixed set anymore
- un-mothball the pertinent error type

Related to #9403, exposed during #9515 CLDR update

This change improves the startup method so that it will also work
if ibus hasn't started yet. Also fixes two memory leaks.