retry terrapin 5 times (#171489)

fixes #170935

build/azure-pipelines/linux/product-build-linux-client.yml

@@ -145,7 +145,7 @@ steps:
   - script: |
       set -e
       node build/npm/setupBuildYarnrc
-      for i in {1..3}; do # try 3 times
+      for i in {1..5}; do # try 5 times
         yarn --cwd build --frozen-lockfile --check-files && break
         if [ $i -eq 3 ]; then
           echo "Yarn failed too many times" >&2
@@ -191,7 +191,7 @@ steps:
         export VSCODE_REMOTE_CXX=$(which g++)
       fi
 
-      for i in {1..3}; do # try 3 times
+      for i in {1..5}; do # try 5 times
         yarn --frozen-lockfile --check-files && break
         if [ $i -eq 3 ]; then
           echo "Yarn failed too many times" >&2