python3-jinja2: Upgrade 3.1.3 -> 3.1.4

Switch to use flit core since upstream changed.

They also changed the capitalisation under pypi.

The license didn't change but the file was renamed, probably as it wasn't
rst.

(From OE-Core rev: e352680528b18c3cdae26233bef7cddc2771d42d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-jinja2_3.1.3.bb → meta/recipes-devtools/python/python3-jinja2_3.1.4.bb

@@ -2,17 +2,17 @@ SUMMARY = "Python Jinja2: A small but fast and easy to use stand-alone template
 HOMEPAGE = "https://pypi.org/project/Jinja2/"
 
 LICENSE = "BSD-3-Clause"
-LIC_FILES_CHKSUM = "file://LICENSE.rst;md5=5dc88300786f1c214c1e9827a5229462"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=5dc88300786f1c214c1e9827a5229462"
 
-SRC_URI[sha256sum] = "ac8bd6544d4bb2c9792bf3a159e80bba8fda7f07e81bc3aed565432d5925ba90"
+SRC_URI[sha256sum] = "4a3aee7acbbe7303aede8e9648d13b8bf88a429282aa6122a993f0ac800cb369"
 
-PYPI_PACKAGE = "Jinja2"
+PYPI_PACKAGE = "jinja2"
 
 CVE_PRODUCT = "jinja2 jinja"
 
 CLEANBROKEN = "1"
 
-inherit pypi setuptools3 ptest
+inherit pypi python_flit_core ptest
 
 SRC_URI += " \
 	file://run-ptest \