[nrf fromtree] scripts: requirements: remove lxml dependency

No more users of lxml in the tree so drop the 3rd party dependency (it
might still be pulled in by other projects, ex. gcovr).

Signed-off-by: Benjamin Cabé <[email protected]>
(cherry picked from commit 9913817)

Author: kartben

scripts/requirements-actions.in

@@ -12,7 +12,6 @@ ijson
 intelhex
 junit2html
 junitparser>=4.0.1
-lxml>=5.3.0
 mypy
 natsort
 ply>=3.10

scripts/requirements-actions.txt

@@ -583,9 +583,7 @@ lxml==6.0.0 \
     --hash=sha256:f720a14aa102a38907c6d5030e3d66b3b680c3e6f6bc95473931ea3c00c59967 \
     --hash=sha256:f8d19565ae3eb956d84da3ef367aa7def14a2735d05bd275cd54c0301f0d0d6c \
     --hash=sha256:f97487996a39cb18278ca33f7be98198f278d0bc3c5d0fd4d7b3d63646ca3c8a
-    # via
-    #   -r requirements-actions.in
-    #   gcovr
+    # via gcovr
 markupsafe==3.0.2 \
     --hash=sha256:0bff5e0ae4ef2e1ae4fdf2dfd5b76c75e5c2fa4132d05fc1b0dabcd20c7e28c4 \
     --hash=sha256:0f4ca02bea9a23221c0182836703cbf8930c5e9454bacce27e767509fa286a30 \