ci: add macOS 11 Big Sur

Remove all traces of Travis CI

Change-Id: Ie9ad527af4921c4f3c56903851200131ed0d5e87
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20f7cb4..e988485 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,6 @@
       - 'docs/**'
       - '*.md'
       - '.mailmap'
-      - '.travis.yml'
   workflow_dispatch:
 
 permissions:
@@ -49,9 +48,14 @@
       matrix:
         xcode: ['11.3', '11.7', '12.4']
         os: [macos-10.15]
+        include:
+          - xcode: '12.5'
+            os: macos-11
+          - xcode: '13'
+            os: macos-11
     runs-on: ${{ matrix.os }}
     env:
-      NODE_LABELS: OSX OSX-10.15
+      NODE_LABELS: OSX
       WAF_JOBS: 3
     steps:
       - name: Set up Xcode
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 07e2af0..eeda33a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -2,8 +2,8 @@
 on:
   push:
     paths-ignore:
+      - '*.md'
       - '.mailmap'
-      - '.travis.yml'
   workflow_dispatch:
 
 permissions:
@@ -14,7 +14,7 @@
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-10.15, ubuntu-20.04]
+        os: [macos-11, ubuntu-20.04]
     runs-on: ${{ matrix.os }}
     env:
       JOB_NAME: Docs
@@ -27,8 +27,8 @@
       - name: Install dependencies
         run: |
           case ${RUNNER_OS} in
-            Linux) export NODE_LABELS="Linux Ubuntu Ubuntu-20.04" ;;
-            macOS) export NODE_LABELS="OSX OSX-10.15" ;;
+            Linux) export NODE_LABELS="Linux Ubuntu" ;;
+            macOS) export NODE_LABELS="OSX" ;;
           esac
           find .jenkins.d/ -type f -name '[1-9]*.sh' -exec chmod -x '{}' +
           ./.jenkins