proving_ground: Add shijinabraham@google.com to OWNERS

Remove a xoogler to resolve a precheck failure
BUG=None
TEST=None

Change-Id: I79cb126664ceefb8382814aa28dc28e8c5582fa3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/3084225
Tested-by: Shijin Abraham <shijinabraham@google.com>
Auto-Submit: Shijin Abraham <shijinabraham@google.com>
Reviewed-by: Kevin Shelton <kmshelton@chromium.org>
Commit-Queue: Kevin Shelton <kmshelton@chromium.org>
diff --git a/provingground/OWNERS b/provingground/OWNERS
index d4f1017..41886f4 100644
--- a/provingground/OWNERS
+++ b/provingground/OWNERS
@@ -2,4 +2,4 @@
 
 kathrelkeld@chromium.org
 kmshelton@chromium.org
-twreid@google.com
+shijinabraham@google.com