Add endurance CI tests

Former-commit-id: 3063a028b31ca87173e873e9842f9fbe71d05ba7

.github/workflows/endurance.yml

@@ -0,0 +1,22 @@
+name: Endurance
+
+on:
+  schedule:
+    - cron: '*/60 * * * *'
+
+jobs:
+
+  test:
+    runs-on: quadcore
+    timeout-minutes: 60
+    steps:
+    - uses: actions/checkout@v1
+    - name: make
+      run: |
+          sudo apt-get -y install uuid-dev libcurl4-openssl-dev
+          make -j8
+    - name: 'test 20x'
+      run: |
+        sudo apt-get install tcl8.5
+        ./runtest --loopn 20
+