package/putty: security bump to version 0.81

The only change between 0.80 and 0.81 is one security fix:

 - ECDSA signatures using 521-bit keys (the NIST P521 curve, otherwise
   known as ecdsa-sha2-nistp521) were generated with biased random
   numbers. This permits an attacker in possession of a few dozen
   signatures to RECOVER THE PRIVATE KEY.

   Any 521-bit ECDSA private key that PuTTY or Pageant has used to
   sign anything should be considered compromised.

   This vulnerability has the identifier CVE-2024-31497.

Update hash of LICENCE file (update in year with
https://git.tartarus.org/?p=simon/putty.git;a=commit;h=f2f28ac0386eebbd45ea605818d31d62d219f589)

https://lists.tartarus.org/pipermail/putty-announce/2024/000038.html

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/putty/putty.hash

@@ -1,7 +1,7 @@
 # Hashes from: http://the.earth.li/~sgtatham/putty/0.80/{sha1,sha256,sha512}sums
-sha1  9c4a96f63ee3e927472191c935cc89228693c03a  putty-0.80.tar.gz
-sha256  2013c83a721b1753529e9090f7c3830e8fe4c80a070ccce764539badb3f67081  putty-0.80.tar.gz
-sha512  c8a6b6fa54ecd8bcf4ec274fef51343dd9996e6458b250b5555c4dc88ded25e87f97277da482c29858510e65635112d541f559ab683635bd950572d850129f90  putty-0.80.tar.gz
+sha1  8c88d871855d3730a0473bb1cb1006654e73b680  putty-0.81.tar.gz
+sha256  cb8b00a94f453494e345a3df281d7a3ed26bb0dd7e36264f145206f8857639fe  putty-0.81.tar.gz
+sha512  d86f2fd0e126b18275d58cf64334b3b27c450899a1c2be2502de9faa2ef58f7fc8efc5d45f25c8395623f1e21917aa02407343bb2fee44c4c00b9f81267d5ecd  putty-0.81.tar.gz
 
 # Locally calculated
-sha256  7ede37f344ee03436c155a375ecb6cdb42a77105baa6e7804bf43260dc4a0c54  LICENCE
+sha256  e0410341c5e45f7479c28d79298edbf615589cdfc115b2d69683d4ccd0425ce0  LICENCE

package/putty/putty.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PUTTY_VERSION = 0.80
+PUTTY_VERSION = 0.81
 PUTTY_SITE = http://the.earth.li/~sgtatham/putty/$(PUTTY_VERSION)
 PUTTY_LICENSE = MIT
 PUTTY_LICENSE_FILES = LICENCE