chore(deps): bump linuxfabrik-lib from 3.0.0 to 3.1.0

[dependabot]

Bumps linuxfabrik-lib from 3.0.0 to 3.1.0.

Release notes

Sourced from linuxfabrik-lib's releases.

v3.1.0

Release Notes/CHANGELOG at https://github.com/Linuxfabrik/lib/blob/main/CHANGELOG.md

Changelog

Sourced from linuxfabrik-lib's changelog.

[v3.1.0] - 2026-04-13

Added

• disk.py: add dir_exists() as the directory-only counterpart to file_exists(). The existing file_exists() wraps os.path.isfile() and therefore returns False for directories, which is easy to miss; callers that want to check for a directory should now use dir_exists()
• lftest.py: add attach_each() helper for iterating over arbitrary lists (e.g. container image matrices, file-based fixtures) with a caller-supplied action, complementing attach_tests() which only works on the TESTS dict shape
• lftest.py: add attach_tests() helper that attaches one test_* method per entry in a plugin's TESTS list, so that test discovery and reporting show the actual number of fixtures instead of a single aggregate test
• lftest.py: add run_mariadb() context manager and MARIADB_LTS_IMAGES constant for container-based MariaDB integration tests. Starts a sclorg or upstream MariaDB container, waits for the TCP listener, yields a temporary client option file, and cleans up on exit. MARIADB_LTS_IMAGES lists the currently supported MariaDB LTS releases (10.6, 10.11, 11.4, 11.8) so the mysql-* monitoring plugins can iterate over a single canonical matrix

Commits

• f34544e chore: bump version number [skip ci]
• 9bb781f feat(lftest): add run_mariadb() helper and MARIADB_LTS_IMAGES constant
• 5930f2d feat(disk): add dir_exists() as the directory-only sibling of file_exists()
• 7902a27 feat(lftest): add attach_each() helper for non-TESTS-dict iterables
• 9edb72f feat(lftest): add attach_tests() helper for accurate test discovery
• efec109 Merge pull request #122 from Linuxfabrik/dependabot/github_actions/actions/up...
• 76c79b0 Merge pull request #123 from Linuxfabrik/dependabot/github_actions/actions/up...
• f7f2a26 Merge pull request #124 from Linuxfabrik/dependabot/github_actions/peter-evan...
• 95da86c Merge pull request #125 from Linuxfabrik/dependabot/pip/lxml-6.0.4
• c0c7116 ci: align Dependabot to weekly Friday 05:00 UTC
• Additional commits viewable in compare view

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