package/{tzdata,zic}: fix hash origin URL

179ae2f ("package/tzdata: bump version to 2023c") forgot to update the
URL of the hash files.

Signed-off-by: Daniel Lang <dalang@gmx.at>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/tzdata/tzdata.hash

@@ -1,4 +1,4 @@
-# From https://mm.icann.org/pipermail/tz-announce/2022-October/000075.html
+# From https://mm.icann.org/pipermail/tz-announce/2023-March/000079.html
 sha512  608bd286ebcbd0004cfdc1da183273f08aff61f90c8867661154453d77a05d421e4c46ad6d066a1fe2e87d5c82ec0f1c0224667a3b35f3180a3eb7f6ff84cbf5  tzdata2023c.tar.gz
 # Locally computed:
 sha256  0613408568889f5739e5ae252b722a2659c02002839ad970a63dc5e9174b27cf  LICENSE

package/zic/zic.hash

@@ -1,4 +1,4 @@
-# From https://mm.icann.org/pipermail/tz-announce/2022-October/000075.html
+# From https://mm.icann.org/pipermail/tz-announce/2023-March/000079.html
 sha512  fa18bae9c0e7c061bc9d5f5f2eb9967f0e4ddb2baafdee9887fa30cd0c60f4aa6f21eacffb17df0d59d26ff54d08c5dcefa98159309eba497e86443624913a82  tzcode2023c.tar.gz
 # Locally computed:
 sha256  0613408568889f5739e5ae252b722a2659c02002839ad970a63dc5e9174b27cf  LICENSE