Bump lxml minimum to 6.0.2 for Python 3.14 compatibility (#2279)

* Bump lxml minimum to 6.0.2 for Python 3.14 compatibility

lxml 5.x fails to build on Python 3.14 due to incompatible pointer
types in Cython-generated C code. lxml 6.0.2 compiles correctly.

Fixes #2266

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Update poetry.lock to match pyproject.toml changes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Soxoj <31013580+soxoj@users.noreply.github.com>

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.3.2 and should not be changed by hand.
 
 [[package]]
 name = "about-time"
@@ -724,6 +724,7 @@ files = [
     {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
 ]
+markers = {dev = "platform_system == \"Windows\" or sys_platform == \"win32\""}
 
 [[package]]
 name = "coverage"
@@ -3792,4 +3793,4 @@ propcache = ">=0.2.1"
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "edc8e2596a73519ad93c4a1e8c235f95d8070c5ecde2b2d7aba16f58be9e6e0a"
+content-hash = "64280126055cdc808ace9bcaa01a1aa2ed2c1ee8892e4acf6a093441168535c8"

pyproject.toml

@@ -45,7 +45,7 @@ future-annotations= "^1.0.0"
 html5lib = "^1.1"
 idna = "^3.4"
 Jinja2 = "^3.1.6"
-lxml = ">=5.3,<7.0"
+lxml = ">=6.0.2,<7.0"
 MarkupSafe = "^3.0.2"
 mock = "^5.1.0"
 multidict = "^6.6.3"