Bump version

Changes:

* Add headers: nimble_autoadv, ztimer64.
* Add more items to the debug implementation exclude ist.
* Hide xtimer from C2Rust.

  This is technically breaking, but there were no components that gave
  anyone reason to use it.

Author: chrysn

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "riot-sys"
-version = "0.7.14"
+version = "0.7.15"
 authors = ["Christian Amsüss <[email protected]>"]
 edition = "2018"