package/libabseil-cpp: bump version to 20200923.3

Release notes:
https://github.com/abseil/abseil-cpp/releases/tag/20200923.3

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libabseil-cpp/libabseil-cpp.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256  bf3f13b13a0095d926b25640e060f7e13881bd8a792705dd9e161f3c2b9aa976  libabseil-cpp-20200923.2.tar.gz
+sha256  ebe2ad1480d27383e4bf4211e2ca2ef312d5e6a09eba869fd2e8a5c5d553ded2  libabseil-cpp-20200923.3.tar.gz
 sha256  c79a7fea0e3cac04cd43f20e7b648e5a0ff8fa5344e644b0ee09ca1162b62747  LICENSE

package/libabseil-cpp/libabseil-cpp.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBABSEIL_CPP_VERSION = 20200923.2
+LIBABSEIL_CPP_VERSION = 20200923.3
 LIBABSEIL_CPP_SITE = $(call github,abseil,abseil-cpp,$(LIBABSEIL_CPP_VERSION))
 LIBABSEIL_CPP_LICENSE = Apache-2.0
 LIBABSEIL_CPP_LICENSE_FILES = LICENSE