Update deqp to vulkan-cts-1.1.6.1

(a7d268a6a3ee9655298d61cdb8b5c42306a4e335)

Bug: b/144183516
Change-Id: Ib4497dc3aaa033904aa269a33244e2eb3b5b6cf1
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/38069
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>

Author: chrisforbes

tests/regres/deqp.json

@@ -1,7 +1,7 @@
 {
     "remote": "git@gitlab.khronos.org:Tracker/vk-gl-cts.git",
-    "sha": "76a2b81e0ca86a65a927892ee4340bc6685e86b3",
+    "sha": "a7d268a6a3ee9655298d61cdb8b5c42306a4e335",
     "patches": [
         "tests/regres/deqp-patches/deqp-x11.patch"
     ]
-}
+}