Changes

jobs/master,gerrit: docker run: 1 arg per line

Move the -i, -u build arguments to separate lines as otherwise it is
easy to overlook them.

Change-Id: Ib31f9bc50e2f18dda631adb90f6a590757088a94

ansible: coverity: fix creating symlink

Fix for:
  Unsupported parameters for (ansible.legacy.command) module: warn. Supported parameters include: _raw_params, _uses_shell, argv, chdir, creates, executable, expand_argument_vars, removes, stdin, stdin_add_newline, strip_empty_ends.

Fixes: OS#6702
Change-Id: I42be62cbba38a2a33ebe46fa1094155358490383

ansible: coverity: improve file not found error

Abort early when the coverity tarball was not found and tell the user
where they can download it, and where exactly the file needs to be.

Change-Id: Iddf629abd5c5a87afc238fbf6927cda9aa6f49b2

scripts/{manuals,tarballs}: skip old sigtran tags

After the old libosmo-sccp.git tags have been imported into
libosmo-sigtran.git, they now need to be ignored in the manuals and
release tarballs job.

Related: OS#6683
Change-Id: Ia182f79ba3f0a80b98af3c1c77a1390f5d08ca93

ansible/hosts: add comments with usage hints

When adding build5, these steps were not intuitive so add some
documentation hints about them.

Change-Id: I7b9c14db47d747dab4d96464ab67f4bec5cf9b7a

scripts/repo-install-test: add disconnect hint

Add a hint that would have been useful when we set up build5.

Change-Id: I208cacaaf4018dc3adf5c4b878147c19769381ff

jobs/master,gerrit: use io_uring seccomp profile

Use the seccomp profile not only in ttcn3 testsuites, but also in
master-builds and gerrit-verifications so we can test io_uring there
too.

CI happened to work without this for libosmocore on build4 because of a
specific docker version where io_uring was not yet (fully?) disabled in
the default seccomp profile. It did not work without this patch on
build5 where we currently have a newer docker version.

Related: OS#6405, OS#6186
Related: docker-playground I27567c2a5d9543c3509c316226c082ab950c5ebc
Change-Id: I71df7f7eeb79b831fb67d2cda377cf1d0619b93d