x11-wm/gamescope: unbreak fetch due to repo growth

fetch: https://github.com/ValveSoftware/gamescope/commit/2a84a44f6897.patch: size mismatch: expected 2931, actual 2935

-index 3f888b16..54928e14 100644
+index 3f888b160..54928e143 100644
-index 4e9e2908..37ede1e4 100644
+index 4e9e2908b..37ede1e4d 100644
-index 5e13a929..f27f1b0e 100644
+index 5e13a929a..f27f1b0eb 100644

(cherry picked from commit 61576dfd9e77796df510df368dd350fa9ebeddda)