python3-nltk: upgrade 3.9.2 -> 3.9.3

Contains fix for CVE-2026-14009.

Changelog:
* Fix CVE-2025-14009: secure ZIP extraction in nltk.downloader
* Block path traversal/arbitrary reads in nltk.data for protocol-less refs
* Block path traversal/abs paths in corpus readers and FS pointers
* Validate external StanfordSegmenter JARs using SHA256
* Add optional sandbox enforcement for filestring()
* Maintenance: downloader/zipped models, CI/tooling updates

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python3-nltk/python3-nltk_3.9.3.bb

@@ -0,0 +1,26 @@
+SUMMARY = "Natural Language Toolkit"
+DESCRIPTION = "NLTK is a leading platform for building Python programs to work \
+               with human language data. It provides easy-to-use interfaces to \
+               over 50 corpora and lexical resources such as WordNet"
+HOMEPAGE = "https://www.nltk.org"
+BUGTRACKER = "https://github.com/nltk/nltk/issues"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=3b83ef96387f14655fc854ddc3c6bd57"
+
+CVE_PRODUCT = "nltk"
+
+RDEPENDS:${PN} = "\
+    python3-click \
+    python3-joblib \
+    python3-tqdm \
+    python3-regex \
+    python3-xmlschema \
+"
+
+RRECOMMENDS:${PN} = "\
+    python3-numpy \
+"
+
+inherit setuptools3 pypi
+
+SRC_URI[sha256sum] = "cb5945d6424a98d694c2b9a0264519fab4363711065a46aa0ae7a2195b92e71f"