[acceptance-tests] Bump coreclr and ms-test-suite repos

Brings in similar fixes to those repos like in e6cf61f920b6ec1c6ecb67bcbe226256d6dc4db7

acceptance-tests/SUBMODULES.json

@@ -10,7 +10,7 @@
   {
     "name": "coreclr", 
     "url": "git://github.com/mono/coreclr.git", 
-    "rev": "ffe6263398591cfbd8100070ac8a191ff2080fbb", 
+    "rev": "96cf61f96b42cf9d013e641609cb7787f6e3a71f", 
     "remote-branch": "origin/mono", 
     "branch": "mono", 
     "directory": "coreclr"
@@ -18,7 +18,7 @@
   {
     "name": "ms-test-suite", 
     "url": "[email protected]:xamarin/ms-test-suite.git", 
-    "rev": "19f2a7dd44a2bfcf6006fd38033222383e8b81bf", 
+    "rev": "8eb26bd72a38e2c78675db45b13e89237dbdf4f2", 
     "remote-branch": "origin/master", 
     "branch": "master", 
     "directory": "ms-test-suite"