Add macos-latest to workflow actions

This is a test commit to verify whether existing workflow actions can
run on macos-latest.

See opensearch-project/opensearch-build#38
for more details.

Signed-off-by: Michael Froh <froh@amazon.com>

.github/workflows/remote-integ-tests-workflow.yml

@@ -19,7 +19,7 @@ jobs:
     name: Run integ tests without security
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest]
         java: [11]
         include:
           - os: windows-latest