Bump Docker/hcshim version (#277)

Author: viniciusjarina

devops/common-linux.yml

@@ -1,7 +1,7 @@
 steps:
   - task: DockerInstaller@0
     inputs:
-      dockerVersion: '20.10.5'
+      dockerVersion: '20.10.7'
       releaseType: 'stable'
 
   - script: wget https://github.com/GitTools/GitVersion/releases/download/5.6.8/gitversion-linux-x64-5.6.8.tar.gz &&
@@ -10,5 +10,5 @@ steps:
             sudo mv libgit2-6777db8.so /usr/local/bin
     displayName: 'Install GitVersion'
 
-  - script: git clone --branch v0.8.14 --single-branch https://github.com/microsoft/hcsshim.git
+  - script: git clone --branch v0.8.17 --single-branch https://github.com/microsoft/hcsshim.git
     displayName: 'Clone hcsshim repo for tar2ext4 tool'