build: change sauce connect proxy name to avoid npm package shadowing

`sauce-connect` is an old npm package.  Using the name for the saucelabs proxy tool causes false security vulnerability warnings.

Author: clydin

package.json

@@ -127,7 +127,7 @@
     "pidtree": "^0.3.0",
     "pidusage": "^2.0.17",
     "rxjs": "~6.4.0",
-    "sauce-connect": "https://saucelabs.com/downloads/sc-4.5.4-linux.tar.gz",
+    "sauce-connect-proxy": "https://saucelabs.com/downloads/sc-4.5.4-linux.tar.gz",
     "semver": "6.3.0",
     "source-map": "^0.7.3",
     "source-map-support": "^0.5.0",

scripts/saucelabs/start-tunnel.sh

@@ -32,4 +32,4 @@ fi
 
 echo "Starting Sauce Connect. Passed arguments: ${sauceArgs}"
 
-${currentDir}/../../node_modules/sauce-connect/bin/sc -u ${SAUCE_USERNAME} -k ${SAUCE_ACCESS_KEY} ${sauceArgs}
+${currentDir}/../../node_modules/sauce-connect-proxy/bin/sc -u ${SAUCE_USERNAME} -k ${SAUCE_ACCESS_KEY} ${sauceArgs}

yarn.lock

@@ -8843,7 +8843,7 @@ sauce-connect-launcher@^1.2.4:
     lodash "^4.16.6"
     rimraf "^2.5.4"
 
-"sauce-connect@https://saucelabs.com/downloads/sc-4.5.4-linux.tar.gz":
+"sauce-connect-proxy@https://saucelabs.com/downloads/sc-4.5.4-linux.tar.gz":
   version "0.0.0"
   resolved "https://saucelabs.com/downloads/sc-4.5.4-linux.tar.gz#dc5efcd2be24ddb099a85b923d6e754754651fa8"