Sphinx 6.0 removed the execfile_() function, which we use as part of the
configuration process.  They *did* warn us...  Just open-code the
functionality as is done in Sphinx itself.

Tested (using SPHINX_CONF, since this code is only executed with an
alternative config file) on various Sphinx versions from 2.5 through 6.0.

Reported-by: Martin Liška <mliska@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Rebased for U-Boot
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

While unlikely to be a direct issue for us, urllib3 before 2.0.7 is
vulnerable to CVE-2023-45803, so bump our version up.

Reported-by: GitHub dependabot
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

While not a direct issue for us, urllib3 before 1.26.17 is vulnerable to
CVE-2023-43804 to bump our version up.

Reported-by: GitHub dependabot
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Use urllib3 2.0.6
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Sphinx-prompt[1] helps bring-in '.. prompt::' option that allows a
better rendered documentation, yet be able to copy paste without
picking up the prompt from rendered documentation.

[1] https://lore.kernel.org/all/87fs48rgto.fsf@baylibre.com/
Suggested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Upgrade certifi to the latest version, to remove e-Tugra from the root
store.

Link: https://groups.google.com/a/mozilla.org/g/dev-security-policy/c/C-HrP1SEq1A?pli=1
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Update the following requirements to their latest version:

* Pygments - syntax highlighting
* pytz     - world timezone definitions
* certifi  - Mozilla's CA bundle

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Per GitHub Dependabot:
- Use setuptools 65.5.1 to avoid some DoS issue
- Use requests 2.31.0 to avoid leaking some proxy information

Signed-off-by: Tom Rini <trini@konsulko.com>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Upgrade to version 2022.12.7.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Pin all dependencies as reported by 'pip freeze'.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Fix an error:
  This project needs at least Sphinx v2.4.4.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>