fix(NA): yarn env vars for node_modules mirrors (#163549)

This PR fixes the setup we have for the node_module mirrors vars that
are overriding and pointing into our middle cache. The previous
configuration was not working as intended as the env vars set globally
on CI never ended up in the bazel managed yarn install.

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

WORKSPACE.bazel

@@ -57,7 +57,11 @@ yarn_install(
   quiet = False,
   frozen_lockfile = False,
   environment = {
+    "GECKODRIVER_CDNURL": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache",
+    "CHROMEDRIVER_CDNURL": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache",
+    "CHROMEDRIVER_CDNBINARIESURL": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache",
     "SASS_BINARY_SITE": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-sass",
     "RE2_DOWNLOAD_MIRROR": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-re2",
+    "CYPRESS_DOWNLOAD_MIRROR": "https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/cypress",
   }
 )

src/dev/ci_setup/setup_env.sh

@@ -128,10 +128,10 @@ export PATH="$PATH:$yarnGlobalDir"
 
 # use a proxy to fetch chromedriver/geckodriver asset
 export GECKODRIVER_CDNURL="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache"
-export CHROMEDRIVER_LEGACY_CDNURL="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache"
 export CHROMEDRIVER_CDNURL="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache"
 export CHROMEDRIVER_CDNBINARIESURL="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache"
 export RE2_DOWNLOAD_MIRROR="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache"
+export SASS_BINARY_SITE="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-sass"
 export CYPRESS_DOWNLOAD_MIRROR="https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/cypress"
 
 export CHECKS_REPORTER_ACTIVE=false