Allow InputBinding.receiveMessage to be async (#3930)

Co-authored-by: wch <[email protected]>

Author: wch

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: shiny
 Type: Package
 Title: Web Application Framework for R
-Version: 1.7.5.9000
+Version: 1.7.5.9001
 Authors@R: c(
     person("Winston", "Chang", role = c("aut", "cre"), email = "[email protected]", comment = c(ORCID = "0000-0002-1576-2126")),
     person("Joe", "Cheng", role = "aut", email = "[email protected]"),

NEWS.md

@@ -10,7 +10,9 @@
 
 * Shiny's CSS styling (for things like `showNotification()`, `withProgress()`, `inputPanel()`, etc.), has been updated with `{bslib}`'s upcoming CSS-only dark mode feature in mind. (#3882, #3914)
 
-* Default styles for `showNotification()` were tweaked slightly to improve accessibility, sizing, and padding. (#3913) 
+* Default styles for `showNotification()` were tweaked slightly to improve accessibility, sizing, and padding. (#3913)
+
+* For `InputBinding`s, the `.receiveMessage()` method can now be asynchronous or synchronous (previously it could only be synchronous). (#3930)
 
 ## Bug fixes