Split the instances in two:
 - "default" instance is grafana, loki (for logs) and influxdb (for
metrics)
 - "agent" instance is telegraf collecting metrics and logs and sending
 it the the "default" instance.

Next steps will be that the agent becomes not used, instead the
slapos instances will be able to push metrics or logs directly, probably
using fluentbit and sending to either loki/influxdb or wendelin.

This reverts commit 99afbc87.

reapply xxx

this is now inline in the software

 - merge software-common.cfg in software.cfg
 - use inline templates instead of a recipe for cloudooo.cfg

also reorganise the build to use latest golang

zeo uses temporary files during commit, we want to keep these temporary
files in its partition.
The reason which motivated this change was to prevent problems when
system /tmp is full. It's also consistent to how we configure other
services.

this logic was simple enough to be inlined and this makes it easier to
make changes

This test checks that running `slapos node software` command on theia
shell starts installing software, but this command might get an error
like:

    process started, but another slapos process is aleady running with pid 2656158, exiting

this happened for example with https://erp5js.nexedi.net/#/test_result_module/20240911-ED8B4BF9/60

This test uses XMLRPC to control ERP5

- Each class now correspond to an instance with different configuration,
and possibly several test methods.
- Upgraded to more recent pypdf version.
- The code has been reviewed to reduce complexity and repetition.
- Adds documentation to all public functions, in Google style.
- Some other cosmetic changes have been made for
consistency (consistent parentheses indentation, consistent string
literal quotes), courtesy of ruff.

See merge request nexedi/slapos!1628

The `enable-scripting` parameter allows to specify a LibreOffice script
to be applied before saving the document, as per
nexedi/cloudooo@a09d87af
If false (the default), an exception will be raised instead.

This commit also adds two SlapOS integration tests classes to test the
functionality:
- TestScripting requests an instance with scripting enabled, and tests
the scripting functionality.
- TestScriptingDisabled tests that scripting fails if it is not enabled
explicitly.

See merge request nexedi/slapos!1628

See merge request nexedi/slapos!1635

See merge request nexedi/slapos!1632

The option "ooo_enable_scripting" can now be set up in the
generic.cloudooo recipe.
This option allows the Cloudooo server to execute user scripts to edit
the documents before they are saved
(see cloudooo@a09d87af3f8bf222cd7d37d814b94ed7a907e2b4).

See merge request nexedi/slapos!1628

Fix clone favicon being the same as the main instance favicon - this
is an uncaught regression. Add a test for it. Also give each clone a
different favicon, in case there are several clones.

See merge request !1637