REALMC-6613 update libmongo URL (#433)

Author: arahmanan

.evg.yml

@@ -217,7 +217,7 @@ buildvariants:
     server_stitch_lib_url: 'https://s3.amazonaws.com/mciuploads/mongodb-mongo-master/stitch-support/enterprise-rhel-70-64-bit/18ca0d551818d6c8274358b8e6444640bec93c88/stitch-support-4.3.0-120-g18ca0d5.tgz'
     transpiler_target: node8-linux
     node_url: "https://nodejs.org/dist/v10.15.1/node-v10.15.1-linux-x64.tar.xz"
-    libmongo_url: 'https://s3.amazonaws.com/stitch-artifacts/stitch-mongo-libs/stitch_mongo_libs_linux_64_patch_cb98294c4e1f7ff704fcabadfddfc4508bc36ea6_5e20380a3627e02b7090e4af_20_01_16_10_16_43/libmongo.so'
+    libmongo_url: 'https://s3.amazonaws.com//stitch-artifacts/stitch-mongo-libs/stitch_mongo_libs_linux_64_patch_b1c679a26ecb975372de41238ea44e4719b8fbf0_5f3d91c10ae6066889184912_20_08_19_20_57_17/libmongo.so'
   tasks:
     - name: run_tests
     - name: lint