chore(actions): update for better maintainability (microsoft#3785)

* update to use yarn not npm for installing for consistency

* update to remove unused feature branch and remove pegged lerna version

* update to remove concurrency which didn't prove an improvement in perf

* remove lint_title action to improve contributor experience

.github/workflows/cd-www-stage.yml

@@ -28,7 +28,7 @@ jobs:
     - name: Build & Prepare Web Application
       run: |
         cd ${{ env.AZURE_WEBAPP_BUILD_PATH }}
-        npm i
+        yarn i
         yarn build
         cp ../site-utilities/statics/server/package.json ../site-utilities/statics/server/server.js build 
         cd build

.github/workflows/ci-daily.yml

@@ -10,7 +10,6 @@ on:
     - master
     - releases/*
     - features/*
-    - feature/*
 
 jobs:
   build_linux:
@@ -20,7 +19,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Add or Update packages
-      run: sudo yarn global add lerna@3.18.2
+      run: sudo yarn global add lerna
 
     - name: Get yarn cache directory path
       id: yarn-cache-dir-path

.github/workflows/ci-weekly.yml

@@ -22,8 +22,6 @@ jobs:
       run: npm i -g lerna
 
     - name: Install package dependencies / prepare workspaces
-      env:
-        CHILD_CONCURRENCY: 1
       run: |
         yarn install --frozen-lockfile