package/glibc: bump version for additional post-2.30 security fixes

Fixes the following security vulnerabilities:

CVE-2020-10029: Trigonometric functions on x86 targets suffered from stack
  corruption when they were passed a pseudo-zero argument.  Reported by Guido
  Vranken / ForAllSecure Mayhem.

CVE-2020-1751: A defect in the PowerPC backtrace function could cause an
  out-of-bounds write when executed in a signal frame context.

CVE-2020-1752: A use-after-free vulnerability in the glob function when
  expanding ~user has been fixed.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/glibc/2.30-20-g50f20fe506abb8853641006a7b90a81af21d7b91/glibc.hash → package/glibc/2.30-67-g4748829f86a458b76642f3e98b1d80f7b868e427/glibc.hash

@@ -1,5 +1,5 @@
 # Locally calculated (fetched from Github)
-sha256  fe1ca8099bc2cda997d8a585f1a512e59df56c52c9c7363a4058da2725c8f4a9  glibc-2.30-20-g50f20fe506abb8853641006a7b90a81af21d7b91.tar.gz
+sha256  4462f56696332efbc5b0c2f86d7aa75a2a02c3d44bc4345fa42b5bab1225de5c  glibc-2.30-67-g4748829f86a458b76642f3e98b1d80f7b868e427.tar.gz
 
 # Hashes for license files
 sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING

package/glibc/glibc.mk

@@ -17,7 +17,7 @@ else
 # Generate version string using:
 #   git describe --match 'glibc-*' --abbrev=40 origin/release/MAJOR.MINOR/master | cut -d '-' -f 2-
 # When updating the version, please also update localedef
-GLIBC_VERSION = 2.30-20-g50f20fe506abb8853641006a7b90a81af21d7b91
+GLIBC_VERSION = 2.30-67-g4748829f86a458b76642f3e98b1d80f7b868e427
 # Upstream doesn't officially provide an https download link.
 # There is one (https://sourceware.org/git/glibc.git) but it's not reliable,
 # sometimes the connection times out. So use an unofficial github mirror.