dep: upgrade libxml2 from 2.9.10 to 2.9.12

dependencies.yml

@@ -1,10 +1,10 @@
 libxml2:
-  version: "2.9.10"
-  sha256: "aafee193ffb8fe0c82d4afef6ef91972cbaf5feea100edc2f262750611b4be1f"
+  version: "2.9.12"
+  sha256: "c8d6681e38c56f172892c85ddc0852e1fd4b53b4209e7f4ebf17f7e2eae71d92"
   #  manually verified checksum:
   #
-  #    $ gpg --verify libxml2-2.9.10.tar.gz.asc ports/archives/libxml2-2.9.10.tar.gz 
-  #    gpg: Signature made Wed 30 Oct 2019 03:15:42 PM EDT
+  #    $ gpg --verify libxml2-2.9.12.tar.gz.asc ports/archives/libxml2-2.9.12.tar.gz
+  #    gpg: Signature made Thu 13 May 2021 02:59:16 PM EDT
   #    gpg:                using RSA key DB46681BB91ADCEA170FA2D415588B26596BEA5D
   #    gpg: Good signature from "Daniel Veillard (Red Hat work email) <veillard@redhat.com>" [unknown]
   #    gpg:                 aka "Daniel Veillard <Daniel.Veillard@w3.org>" [unknown]
@@ -17,14 +17,14 @@ libxml2:
   #
   #    -----BEGIN PGP SIGNATURE-----
   #    
-  #    iQEzBAABCAAdFiEE20ZoG7ka3OoXD6LUFViLJllr6l0FAl254V4ACgkQFViLJllr
-  #    6l0ldAf6Azt4/oKDfMKRd+xaykUrb+34dr2ZRsjRDS1cnelAtL9TCWhE5lOkLI3c
-  #    3FyNRaLhOEOOluZmKTJYyzS42JSSHDhxGj14gIeyafOjvRhHG3h1m5GvMmvgKWkd
-  #    qzxFrVFSG26iWJxMvxIA88t7M+QHb7ff7xR29ETJscewEmAd3LmZITglK02lWeGz
-  #    LfxfLuakM6RnCUu0dzacJKO0nMOKju+RL/N9bciI/UOhNYEkWqPnzC0GzbvFLqDu
-  #    rM+OvCSewSTziiejpdrUwYXkY5Ui2+cxUbacLauEr8iRLg7xXKqv27NORE4yeQcS
-  #    LgIhxG/qSNfihMS6E1ZO5bK2DbGCZQ==
-  #    =ZNuc
+  #    iQEzBAABCAAdFiEE20ZoG7ka3OoXD6LUFViLJllr6l0FAmCddwQACgkQFViLJllr
+  #    6l11LQgAioRTdfmcC+uK/7+6HPtF/3c5zkX6j8VGYuvFBwZ0jayqMRBAl++fcpjE
+  #    JUU/JKebSZ/KCYjzyeOWK/i3Gq77iqm3UbZFB85rqu4a5P3gmj/4STWVyAx0KU3z
+  #    G3jKqDhJOt7c0acXb5lh2DngfDa1dn/VGcQcIXsqplNxNr4ET7MnSJjZ3nlxYfW2
+  #    E5vWBdPCMUeXDBl6MjYvw9XnGGBLUAaEJWoFToG6jKmVf4GAd9nza20jj5dtbcJq
+  #    QEOaSDKDr+f9h2NS8haOhJ9vOpy52PdeGzaFlbRkXarGXuAr8kITgATVs8FAqcgv
+  #    MoVhmrO5r2hJf0dCM9fZoYqzpMfmNA==
+  #    =KfJ9
   #    -----END PGP SIGNATURE-----
   #