[doc-only] cuda.bindings: clarify getLocalRuntimeVersion docstring

The docstring for getLocalRuntimeVersion() largely duplicated that of
cudaRuntimeGetVersion() without explaining the actual behavioral
difference. Update it to describe that this function dynamically locates
the cudart shared library via cuda.pathfinder and queries that locally
discovered library, whose version may differ from the cudart that
cuda.bindings was built against.

Closes #1062

Signed-off-by: matysanchez <matysanchez@users.noreply.github.com>

Author: matysanchez

cuda_bindings/cuda/bindings/runtime.pyx.in

@@ -42117,15 +42117,18 @@ def cudaGraphicsVDPAURegisterOutputSurface(vdpSurface, unsigned int flags):
 
 @cython.embedsignature(True)
 def getLocalRuntimeVersion():
-    """ Returns the CUDA Runtime version of local shared library.
+    """ Returns the CUDA Runtime version of the locally installed shared library.
 
-    Returns in `*runtimeVersion` the version number of the current CUDA
-    Runtime instance. The version is returned as (1000 * major + 10 *
-    minor). For example, CUDA 9.2 would be represented by 9020.
+    Locates the CUDA Runtime (``cudart``) shared library on the host using
+    :py:obj:`cuda.pathfinder.load_nvidia_dynamic_lib`, then calls
+    ``cudaRuntimeGetVersion`` from that dynamically loaded library. The
+    returned value reflects the CUDA Toolkit version of the locally
+    discovered ``cudart``, which may differ from the version that
+    :py:obj:`cuda.bindings` was built against (as reported by
+    :py:obj:`~.cudaRuntimeGetVersion`).
 
-    As of CUDA 12.0, this function no longer initializes CUDA. The purpose
-    of this API is solely to return a compile-time constant stating the
-    CUDA Toolkit version in the above format.
+    The version is returned as (1000 * major + 10 * minor). For example,
+    CUDA 9.2 would be represented by 9020.
 
     This function automatically returns :py:obj:`~.cudaErrorInvalidValue`
     if the `runtimeVersion` argument is NULL.
@@ -42139,7 +42142,7 @@ def getLocalRuntimeVersion():
 
     See Also
     --------
-    :py:obj:`~.cudaDriverGetVersion`, :py:obj:`~.cuDriverGetVersion`
+    :py:obj:`~.cudaRuntimeGetVersion`, :py:obj:`~.cudaDriverGetVersion`, :py:obj:`~.cuDriverGetVersion`
     """
     cdef int runtimeVersion = 0
     err = cyruntime.getLocalRuntimeVersion(&runtimeVersion)