Signed-off-by: Tomasz Kłoczko <kloczek@github.com>

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* ci: migrate from Travis CI to GitHub Actions

Replace Travis CI configuration with GitHub Actions workflows.
Add CI build workflow for Debian, Fedora, Ubuntu, and Archlinux.
Add release workflow for automated GitHub releases on tags.
Add dependabot configuration for GHA pin updates.
Remove obsolete .travis.yml.

* ci: add missing PKGBUILD depends to archlinux CI script

* remove .build.yml

* ci: remove redundant GH CLI installation step

* ci: add set -eo pipefail to workflow scripts

* build: add AC_CONFIG_MACRO_DIRS([m4]) for gettext m4 macros

* ci: add missing pkgs

* ci: build mate-desktop from source

* ci: disable pt language for help in search tool in Fedora build

---------

Co-authored-by: Victor Kareh <vkareh@redhat.com>

Cleanly exit on SIGINT and SIGTERM so we can properly cleanup temporary
files.

Newer versions of gdk-pixbuf use libglycin's asynchronous image save
mechanism. This makes the fork-save redundant and has a potential of
hanging when saving a screenshot.

This setting allows user to enable/disable the shutter sound when taking
a screenshot. Default is enabled to maintain current behavior.

Fixes #134