Updated tmp_path documentation

[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

changelog/11790.doc.rst

@@ -0,0 +1,2 @@
+Changed phrasing on the ``tmp_path`` documentation to more clearly
+illustrate it's behavior ("test invocation" to "current test").

doc/en/how-to/tmp_path.rst

@@ -9,7 +9,7 @@ The ``tmp_path`` fixture
 ------------------------
 
 You can use the ``tmp_path`` fixture which will
-provide a temporary directory unique to the test invocation,
+provide a temporary directory unique to the current test,
 created in the `base temporary directory`_.
 
 ``tmp_path`` is a :class:`pathlib.Path` object. Here is an example test usage: