Older Theia versions no longer compile inside test nodes since we
prevent using the system python.

Remove obsolete upgrade tests since we now upgrade from a Theia
version after merge request !1399.

Export (theia0) and export (theia1, ...) instances published
connection parameters twice, once without and once with the
resiliency connection parameters. Keep only that last one.

Use official SOAPpy=0.12.22 compatible with pip.
Downgrade zope.authentication=4.5.0 because 5.0 requires Python>=3.7.

This reverts commit 8818240a.

To support recent setuptools.
Latest version 1.26.2 has more complex build requirements,
left for later.

our new nexedi.org currently no longer serve static pages with links,
using absolute links should allow us to have test passing until this is
fixed.

These partition references should be kept short, they are a mechanism
to use a short path for unix sockets, because unix socket paths can not
exceed 108 characters.

When running the test in theia, this was causing errors:

   # [ALERT]    (100453) : config : parsing [/srv/slapgrid/slappart15/srv/runner/instance/slappart7/tmp/inst/with-max-rlimit-nofile6/etc/haproxy.cfg:37] : log : socket path '/srv/slapgrid/slappart15/srv/runner/instance/slappart7/tmp/inst/with-max-rlimit-nofile6/var/run/log.sock' too long (max 97

Currently, due to ensure_ascii=True default of json.dumps, we are
insisting on our JSON schemas to be ascii-only and all other characters
to be represented by \uxxxx escapes. So far this was not problematic as
all our schemas contains only ASCII characters, but upcoming
ors-amarisoft changes want to use e.g. "→" symbol:

    https://lab.nexedi.com/kirr/slapos/blob/b51f5523/software/ors-amarisoft/software.cfg.json#L15

which currently results in failure of json-schema test:

    FAIL: test_ors-amarisoft_software_cfg_json_format (slapos.test.test_json_schema.TestJSONSchemaValidation)
    ...

    First differing element 14:
    '      "title": "\\u2192  eNB/gNB | Radio Unit",'
    '      "title": "→  eNB/gNB | Radio Unit",'

And in general, in 2023 I think there is no reason to insist on our schemas to
be ASCII-only: say if one wants to describe something about "α" parameter. It
would be good to use that α character directly and seeing it in the editor,
instead of using escapes all the time.

As indicated by below stackoverflow answer "JSON spec requires UTF-8 support by
decoders": https://stackoverflow.com/a/594881/9456786 , and indeed checking
JSON specification also confirms that by default JSON decoders shall use UTF-8:

    https://datatracker.ietf.org/doc/html/rfc7159#section-8.1

This way, I think, we can switch to UTF-8 safely.

/reviewed-by @jerome, @lu.xu
/reviewed-on nexedi/slapos!1498

See merge request nexedi/slapos!1499

/reviewed-by @kirr and @jerome
/reviewed-on nexedi/slapos!1494

wendelin.core 2.0.alpha3.post9 supports golang 1.21: with this new
version we can set golang 1.21 as the new default.

/reviewed-by @kirr and @jerome
/reviewed-on nexedi/slapos!1494

Go1.21 already has the fifth minor revision (released 2023-12-05) and
should therefore already be sufficiently stable. Furthermore we need it
to fix a bug in a NEO/go dependency [1].

Please find all details in the official release note:

    https://go.dev/doc/go1.21

It was released on 2023-08-08 [2]. Due to the go promise of compatibility
most software should still compile without any problems.

In golang < 1.21 we needed to patch golang to fix
https://github.com/golang/go/issues/42525. In golang 1.21 we still need
to apply a fix, but can't apply the old patch because the code changed.
In golang > 1.21 this problem is already fixed with https://go-review.googlesource.com/c/go/+/520055.

Because of https://github.com/golang/go/commit/092671423cd95eaa6df93eb29442fef41504d097
'TestUnshareMountNameSpace' fails on golang 1.21 [3]. In golang 1.20 this test
was skipped [4]. To fix this failure the additional patch
'skip-unshare-mount-test.patch' has been added.

---

[1] nexedi/wendelin.core!22 (comment 195769)]
[2] https://go.dev/doc/devel/release
[3] --- FAIL: TestUnshareMountNameSpace (0.18s)
    exec_linux_test.go:243: unshare failed: exit status 2
        unshare: mount /tmp/TestUnshareMountNameSpace2210137852/001 failed: 0x1
[4] === RUN TestUnshareMountNameSpace exec_linux_test.go:333: kernel prohibits unshare in unprivileged process, unless using user namespace — SKIP: TestUnshareMountNameSpace (0.00s)

/reviewed-by @kirr and @jerome
/reviewed-on nexedi/slapos!1494