=htc, doc replace usages of deprecated methods of FileIO (#20928)

akka-docs/rst/java/stream/migration-guide-2.0-2.4-java.rst

@@ -136,8 +136,8 @@ IO Sources / Sinks materialize IOResult
 
 Materialized values of the following sources and sinks:
 
-  * ``FileIO.fromFile``
-  * ``FileIO.toFile``
+  * ``FileIO.fromPath``
+  * ``FileIO.toPath``
   * ``StreamConverters.fromInputStream``
   * ``StreamConverters.fromOutputStream``
 

akka-docs/rst/java/stream/stream-io.rst

@@ -100,7 +100,7 @@ Akka Streams provide simple Sources and Sinks that can work with :class:`ByteStr
 on files.
 
 
-Streaming data from a file is as easy as creating a `FileIO.fromFile` given a target file, and an optional
+Streaming data from a file is as easy as creating a `FileIO.fromPath` given a target path, and an optional
 ``chunkSize`` which determines the buffer size determined as one "element" in such stream:
 
 .. includecode:: ../code/docs/stream/io/StreamFileDocTest.java#file-source

akka-docs/rst/java/stream/stream-quickstart.rst

@@ -90,7 +90,7 @@ accepts strings as its input and when materialized it will create auxiliary
 information of type ``CompletionStage<IOResult>`` (when chaining operations on
 a :class:`Source` or :class:`Flow` the type of the auxiliary information—called
 the “materialized value”—is given by the leftmost starting point; since we want
-to retain what the ``FileIO.toFile`` sink has to offer, we need to say
+to retain what the ``FileIO.toPath`` sink has to offer, we need to say
 ``Keep.right()``).
 
 We can use the new and shiny :class:`Sink` we just created by