[release/5.0] Add workarounds for brew on old OSX images (#45809)

* Add workarounds for brew on old OSX images

* Don't remove openssl directories

* Use azdo env var

* Add logging

Co-authored-by: Santiago Fernandez Madero <safern@microsoft.com>

eng/install-native-dependencies.sh

@@ -11,6 +11,18 @@ if [ "$1" = "Linux" ]; then
     fi
 elif [ "$1" = "OSX" ] || [ "$1" = "tvOS" ] || [ "$1" = "iOS" ]; then
     engdir=$(dirname "${BASH_SOURCE[0]}")
+
+    # run this only on AzDo
+    if [ "$BUILD_BUILDNUMBER" != "" ]; then
+        # workaround for old osx images on hosted agents
+        # piped in case we get an agent without these values installed
+        if ! brew_output="$(brew uninstall openssl@1.0.2t 2>&1 >/dev/null)"; then
+            echo "didn't uninstall openssl@1.0.2t"
+        else
+            echo "succesfully uninstalled openssl@1.0.2t"
+        fi
+    fi
+
     brew update --preinstall
     brew bundle --no-upgrade --no-lock --file "${engdir}/Brewfile"
     if [ "$?" != "0" ]; then