Up OneButton library version to 2.1.0 (#2480)

* Up OneButton library version to 2.1.0

* Update ButtonThread.h

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

arch/stm32/stm32wl5e.ini

@@ -4,11 +4,11 @@ board = generic_wl5e
 framework = arduino
 
 build_type = debug
-build_flags = 
+build_flags =
   ${arduino_base.build_flags}
   -Isrc/platform/stm32wl -g
 
-build_src_filter = 
+build_src_filter =
   ${arduino_base.build_src_filter} -<platform/esp32/> -<nimble/> -<mesh/api/> -<mesh/http/> -<modules/esp32> -<mesh/eth/> -<mqtt/> -<graphics> -<input> -<buzz> -<modules/Telemetry> -<platform/nrf52> -<platform/portduino> -<platform/rp2040>
 
 lib_deps =
@@ -16,5 +16,5 @@ lib_deps =
   jgromes/RadioLib@^6.0.0
   https://github.com/kokke/tiny-AES-c.git#f06ac37fc31dfdaca2e0d9bec83f90d5663c319b
 
-lib_ignore = 
-  mathertel/OneButton@^2.0.3
+lib_ignore =
+  https://github.com/mathertel/OneButton#2.1.0