Fixes #5817.

(cherry picked from commit 10c7d88e)

chore(linux): Update changelogs for 14.0.283 📦 

chore(linux): Allow to specify debian revision

This change allows to specify the debian revision when creating
source packages for Debian.

chore(linux): Remove lintian warning

fix(android/engine): Fix font paths 🍒 

Lintian complained "missing-build-dependency-for-dh-addon" which
I'm not entirely sure is correct. However, there is an easy
workaround by removing an unnecessary parameter.

fix(linux): Add test targets to Makefile 🎫

The test targets got added on the `master` branch and the TC
configuration adjusted so that PR builds run the tests. This change
adds these targets (but without running ibus-keyman tests) to the
stable branch, so that TC builds for PRs will work.

fix(web): popupBaseKey null check

chore(android,oem/fv/android): Update targetSDKVersion to 30 🍒 

Fixes #5912.

Corresponding alpha fix coming.

auto: increment stable-14.0 version to 14.0.284

fix(web): remove canvas use for iOS compatibility 🍒

Fixes #5831.

Cherry-pick of #5915.

iOS 15 has a significant crashing bug whereby use of a canvas element
completely crashes the browser in some contexts. In particular, we have
observed this when using a WKWebView in a keyboard extension without
'Allow Full Access' switched on.

Keyman uses canvas element to draw a nice looking key preview (key tip)
on iPhones. This is a critical issue for Keyman for iPhone. Keyman for
iPad is not affected because the iPad version does not use key previews.

The resolution here is to remove use of the canvas drawing for key tips
and use a simplified pure HTML/CSS shape. I have not conditioned this
fix on platform; I have currently opted to apply this to all platforms.

This issue will be reported to Apple for resolution. The issue applies
so far to iOS 15.0, 15.1.

fix(ios): move sentry settings responsibility to build agent 👮‍♂️ 🍒

The build agent already has the relevant `SENTRY_` environment variables
set in order to complete builds for all projects. Thus, we should
exclude these values from the xcode build. However, we need to ensure
that the `SENTRY_URL` and `SENTRY_ORG` variables are imported into the
xcode environment from the build agent environment.

fix(windows): handle edge cases using default language 🍒

chore: sentry.io dsn 👮‍♂️ 🍒

fix(linux): Don't crash with non-keyboard package file

chore(linux): Update changelog files for 14.0.282

This updates the changelog files to match what got uploaded into
Debian unstable (sid).

fix(linux): Don't crash displaying keyboard details

fix(common): Fix cherry-pick labeling (🍒)

My previous commit escaped the parens which should be part of the
regex.

(cherry picked from commit 01789142)

chore(common): Enhance cherry-pick labeling 🍒 

fix(linux): Fix debian package script 🍒 

chore(linux): copy Keyman for Linux 15 reference to 14