Add checksums for the 1.3.6 source packages

Checksums of the source packages, produced by the gitlab ci runner,
as published to https://downloads.xiph.org/releases/ogg/SHA256SUMS.

Author: rillian

releases.sha2

@@ -41,3 +41,6 @@ dd74e3ae52beab6c894d4b721db786961e64f073f28ef823c5d2a3558d4fab2d  libogg-1.3.4.z
 0eb4b4b9420a0f51db142ba3f9c64b333f826532dc0f48c6410ae51f4799b664  libogg-1.3.5.tar.gz
 c4d91be36fc8e54deae7575241e03f4211eb102afb3fc0775fbbc1b740016705  libogg-1.3.5.tar.xz
 fd4e5ba7e93b84b3ec41cdf01494cc586ef6e912b313dbab25512dd02665dfaf  libogg-1.3.5.zip
+83e6704730683d004d20e21b8f7f55dcb3383cdf84c0daedf30bde175f774638  libogg-1.3.6.tar.gz
+5c8253428e181840cd20d41f3ca16557a9cc04bad4a3d04cce84808677fa1061  libogg-1.3.6.tar.xz
+e347b59c29e8f938bb48b2fda5da02f2d5d97316c004abaa76e171cf4a2fbdd7  libogg-1.3.6.zip