package/libmdbx: bump version to 0.11.11

This is stable bugfix release of libmdbx. So it is reasonable to backport
this patch to all applicable releases/branches of Buildroot.

Release notes since v0.11.8:
 - for v0.11.9  https://gitflic.ru/project/erthink/libmdbx/release/4742671e-a691-45a5-88de-c6341f762d0b
 - for v0.11.10 https://gitflic.ru/project/erthink/libmdbx/release/2886daeb-f583-4c30-bede-b8e60965c834
 - for v0.11.11 https://gitflic.ru/project/erthink/libmdbx/release/7f1a026d-28aa-4d92-a1e0-a1a75ebe0b3d

The complete ChangeLog: https://gitflic.ru/project/erthink/libmdbx/blob?file=ChangeLog.md

Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit b8ff431322f4614ebddeb8b15dd57d530510f268)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libmdbx/libmdbx.hash

@@ -1,5 +1,5 @@
 # Hashes from: https://libmdbx.dqdkfa.ru/release/SHA256SUMS
-sha256  06011f361481ee7adc2111e48b7b121384294e0b6b8f10c75e7886629297b279  libmdbx-amalgamated-0.11.8.tar.xz
+sha256  d2c81db716a33d007cc75702ecf3c45cfb7c33a2261fbacced6945204ece1b67  libmdbx-amalgamated-0.11.11.tar.xz
 
 # Locally calculated
 sha256  310fe25c858a9515fc8c8d7d1f24a67c9496f84a91e0a0e41ea9975b1371e569  LICENSE

package/libmdbx/libmdbx.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBMDBX_VERSION = 0.11.8
+LIBMDBX_VERSION = 0.11.11
 LIBMDBX_SOURCE = libmdbx-amalgamated-$(LIBMDBX_VERSION).tar.xz
 LIBMDBX_SITE = https://libmdbx.dqdkfa.ru/release
 LIBMDBX_SUPPORTS_IN_SOURCE_BUILD = NO