Update lerna and minimum node version

- Update to lerna 6 and set node 14 as minimum engine version 
eclipse-glsp/glsp#676
eclipse-glsp/glsp#680
- Update jenkins file to 
 - ensure that we don't exhaust resource limits
 - enable error reporting when master builds fails
  eclipse-glsp/glsp#794

Jenkinsfile

@@ -43,6 +43,7 @@ pipeline {
     environment {
         YARN_CACHE_FOLDER = "${env.WORKSPACE}/yarn-cache"
         SPAWN_WRAP_SHIM_ROOT = "${env.WORKSPACE}"
+        EMAIL_TO= "[email protected]"
     }
 
     stages {
@@ -78,7 +79,7 @@ pipeline {
                 }
             }
             steps {
-                build job: 'deploy-npm-glsp-vscode-integration', wait: false
+                build job: 'deploy-npm-glsp-vscode-integration', wait: true
             }
         }
     }
@@ -90,5 +91,35 @@ pipeline {
             tools: [esLint(pattern: 'node_modules/**/*/eslint.xml')], 
             qualityGates: [[threshold: 1, type: 'TOTAL', unstable: true]]
         }
+        failure {
+            script {
+                if (env.BRANCH_NAME == 'master') {
+                    echo "Build result FAILURE: Send email notification to ${EMAIL_TO}"
+                    emailext attachLog: true,
+                    body: 'Job: ${JOB_NAME}<br>Build Number: ${BUILD_NUMBER}<br>Build URL: ${BUILD_URL}',
+                    mimeType: 'text/html', subject: 'Build ${JOB_NAME} (#${BUILD_NUMBER}) FAILURE', to: "${EMAIL_TO}"
+                }
+            }
+        }
+        unstable {
+            script {
+                if (env.BRANCH_NAME == 'master') {
+                    echo "Build result UNSTABLE: Send email notification to ${EMAIL_TO}"
+                    emailext attachLog: true,
+                    body: 'Job: ${JOB_NAME}<br>Build Number: ${BUILD_NUMBER}<br>Build URL: ${BUILD_URL}',
+                    mimeType: 'text/html', subject: 'Build ${JOB_NAME} (#${BUILD_NUMBER}) UNSTABLE', to: "${EMAIL_TO}"
+                }
+            }
+        }
+        fixed {
+            script {
+                if (env.BRANCH_NAME == 'master') {
+                    echo "Build back to normal: Send email notification to ${EMAIL_TO}"
+                    emailext attachLog: false,
+                    body: 'Job: ${JOB_NAME}<br>Build Number: ${BUILD_NUMBER}<br>Build URL: ${BUILD_URL}',
+                    mimeType: 'text/html', subject: 'Build ${JOB_NAME} back to normal (#${BUILD_NUMBER})', to: "${EMAIL_TO}"
+                }
+            }
+        }
     }
 }

package.json

@@ -1,7 +1,8 @@
 {
   "private": true,
   "engines": {
-    "yarn": ">=1.7.0 <2.x.x"
+    "yarn": ">=1.7.0 <2.x.x",
+    "node": ">=14.18.0"
   },
   "scripts": {
     "prepare": "lerna run prepare",
@@ -16,12 +17,13 @@
     "build:ci": "lerna run build:ci"
   },
   "devDependencies": {
-    "@eclipse-glsp/config": "^1.0.0",
+    "@eclipse-glsp/config": "1.1.0-next.d03ad9f.112",
     "@types/vscode": "^1.54.0",
-    "lerna": "^4.0.0",
+    "@types/node": "14",
+    "lerna": "^6.1.0",
     "mvn-artifact-download": "5.1.0",
     "rimraf": "^2.6.3",
-    "typescript": "^4.4.5"
+    "typescript": "^4.9.3"
   },
   "resolutions": {
     "**/sprotty": "0.13.0-next.1c4343c.328"