wine-staging: Fix SHA256 hash
wine-staging: Fix SHA256 hash

In c6b3c66277ff97d77d51c3a822458f19982b922a, the unstable version has
been bumped to 2.6.

Unfortunately the staging source is re-using the version attribute from
the unstable source and thus has been bumped as well.

I have built wineStaging on x86_64-linux and it now succeeds.

Signed-off-by: aszlig <ee1aa092358634f9c53f01b5a783726c9e21b35a@redmoonstudios.org>
Cc: da39a3ee5e6b4b0d3255bfef95601890afd80709@FRidh

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