python3-jinja2: upgrade 3.1.2 -> 3.1.3

python3-jinja2: upgrade 3.1.2 -> 3.1.3

Changelog:
==========
-Fix compiler error when checking if required blocks in parent templates are empty.
-xmlattr filter does not allow keys with spaces.
-Make error messages stemming from invalid nesting of {% trans %} blocks more helpful

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>