Help: Update Sphinx versionadded directives for 3.24 release

Run the script:

    Utilities/Sphinx/update_versions.py --since v3.23.0 --overwrite

Help/envvar/ADSP_ROOT.rst

@@ -1,6 +1,8 @@
 ADSP_ROOT
 ---------
 
+.. versionadded:: 3.24
+
 .. include:: ENV_VAR.txt
 
 The ``ADSP_ROOT`` environment variable specifies a default value

Help/variable/CMAKE_ADSP_ROOT.rst

@@ -1,6 +1,8 @@
 CMAKE_ADSP_ROOT
 ---------------
 
+.. versionadded:: 3.24
+
 When :ref:`Cross Compiling for ADSP SHARC/Blackfin`,
 this variable holds the absolute path to the latest CCES or VDSP++ install.
 The directory is expected to contain the ``cc21k.exe`` and ``ccblkfn.exe`` compilers.

Help/variable/CMAKE_FIND_PACKAGE_TARGETS_GLOBAL.rst

@@ -1,6 +1,8 @@
 CMAKE_FIND_PACKAGE_TARGETS_GLOBAL
 ---------------------------------
 
+.. versionadded:: 3.24
+
 Setting to ``TRUE`` promotes all :prop_tgt:`IMPORTED` targets discoverd
 by :command:`find_package` to a ``GLOBAL`` scope.
 

Help/variable/CMAKE_TRY_COMPILE_NO_PLATFORM_VARIABLES.rst

@@ -1,6 +1,8 @@
 CMAKE_TRY_COMPILE_NO_PLATFORM_VARIABLES
 ---------------------------------------
 
+.. versionadded:: 3.24
+
 Set to a true value to tell the :command:`try_compile` command not
 to propagate any platform variables into the test project.